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## please tell the important points to remember in the chapter magnetic effects?

Asked by 7th March 2008 11:05 AM

## sir i want to ask that why when we move a magnet around a wire or vice ,the current is being induced in wire and , is this  due to change in magnetic field as answered by google but i want to ask why does manetic field change  let us assume that it is changed then,  one expert answered that magnetic field is created around a wire which induces current and why does magnetic field is induced in wire and why magnetic field induces current.     pls answer the coloured rest is just explanation . I hope that you will understand my doubt and answer me with good explanation .

Asked by Ikshit 5th August 2016 8:44 PM

## why magnetic field is not conservative in nature

Asked by modi72879 21st June 2017 3:32 PM

## Who and how  gave  the rules to find the direction of magnetic field . How did he verify them  .Are they completely accurate. And why their direction is important . How does their direction influence them.

Asked by lovemaan5500 4th October 2017 6:15 PM

## Is direction of magnetic lines of force important in any way.what changes can the direction make with magnetic strength.

Asked by lovemaan5500 6th October 2017 5:49 AM

## A circular coil of cross section area 200 centimetre square  and 20 turns is rotated about the vertical diameter with angular speed of 50 rad/s in a uniform magnetic field of magnitude 3*10-2T(10 to the power -2).calculate the maximum value of current in the coil

Asked by Priyanka 15th November 2017 3:52 PM

## drive the expression for the magnetic field around a straight current carrying conductor of finite size? please explain in detail. earlier because tomorrow is my exam.

Asked by modi72879 24th November 2017 9:29 AM

## Two short magnets P and Q are placed one over the other with their magnetic axis mutually perpendicular to each other. it is found that the resultant field at a point on the prolongation of the magnetic field of P is inclined at 30 with this axis. compare the magnetic moments of the two magnets.

Asked by modi72879 25th November 2017 11:35 AM

## Please give a thorough solution with reasoning.

Asked by Arushi Juyal 12th December 2017 7:18 AM

### NEET1 ALL Class Magnetic Effect of Current and Magnetism Moving Charges and Magnetism and Magnetism and Matter

Asked by Arushi Juyal 13th December 2017 7:13 AM

## Q.

Asked by Arushi Juyal 16th December 2017 6:57 AM

## Q

Asked by Arushi Juyal 24th December 2017 11:57 PM

### CBSE X Physics Magnetic Effects of Electric Current

Asked by abinash.gupta003 29th December 2017 2:23 PM

## a straight current carrying wire carries an electric current of 200 A..what will be the magnetic field due to this current at point 2m away from the wire?...pls give me the formula

Asked by tluser3 3rd January 2018 9:23 PM

## Magnetic lines of force always cross each other. State whether true or false.

Asked by abhijeet.mishra 14th March 2018 4:07 PM

## What is the magnetic field intensity at the centre O,due to the current flowing through the wire

Asked by rawatanilk24 20th April 2018 10:51 PM

## 2 identical concentric  coils X and Y charrying current in the ratio 1:2 are arranged in mutual perpendicular planes. if the magnetic field due to the coil X is B.The net field at the centre is

Asked by hemanttkumarr 23rd May 2018 9:44 PM

## Two concentric circular coils is having 10 turns with radius 0.2 metre and 0.4 metre carrying current 0.2 ampere and 0.3 ampere respectively in opposite direction in the magnetic field at the centre is

Asked by hemanttkumarr 23rd May 2018 9:53 PM

### NEET1 NEET1 Physics

Asked by minipkda 24th May 2018 12:03 PM

## Solve it

Asked by venkat 28th May 2018 7:17 AM

## the couple acting on a magnet of length 10 cm pllaced in a uniform magnetic field of intensity 40 N/wb such that the axis of the magnet makes 45 with the field direcion is underroot 2 /10 Nm ,the pole strength of the manet in webers is ?

Asked by Atulcaald 31st May 2018 9:46 PM

## Ques 8th

Asked by rbhatt16 19th June 2018 11:02 PM

## A beam of alpha particles projected along + X axis, experiences a force due to a magnetic field along the +Y axis. What is the direction of the magnetic field?

Asked by shikshapunia 24th June 2018 10:47 AM

## Question

Asked by rbhatt16 26th June 2018 6:08 PM

## Ques11

Asked by rbhatt16 14th July 2018 9:57 PM

## Ques6

Asked by rbhatt16 19th July 2018 9:32 AM

## A jet plane is travelling due west at the speed of 1800 km/h. what is the voltage difference developed between the ends of the wings 25m long, if the earths magnetic field at the location is 0.0005 T and the dip angle is 30°？

Asked by sbtech357 27th July 2018 9:24 AM

## What is snow rule or for what purpose this rule is used

Asked by akashkumartiwari2153 4th August 2018 6:29 PM

## Ques 20 It is single correct ques

Asked by rbhatt16 23rd August 2018 7:56 AM

## Manav made an electric circuit and placed a magnetic compass near it. What will happen to the magnetic needle when he switches the circuit ' ON '? Justify your answer.

Asked by Shreeya Nemani 25th August 2018 2:51 PM

## As we know magnetic field can not do work but if a metal coin is place near to magnetic it will be attracted towards magnet .how can explain it

Asked by ashutosharnold1998 19th September 2018 10:40 AM

### NEET1 NEET1 Physics

Asked by Deepak 4th October 2018 7:44 PM

## Three plotting compasses are placed close to a current carrying wire wrapped around an insulator as shown in fig.How many compass needles will change direction if the current through the wire is increased?

Asked by m.nilu 18th November 2018 10:27 AM

## what happen when a magnet placed in space

Asked by chhedilal2443 14th December 2018 6:56 PM

## Two coplanar concentric circular conductors made of same wire of same material and thickness connected to batteries of 20 V and 16V respectively and are of radii 5 cam and 10 cm respectively. If the resistance of inner coil is 4 ohm, find magnetic induction at centre O.

Asked by acv27joy 16th December 2018 6:36 PM

## In what direction will a magnetic compass deflect if it is placed on the west side of a wire which is carrying current in a vertically upward direction?

Asked by KONDA VENKATA KHEERTHANA 20th December 2018 9:02 PM

## what is magnet

Asked by bijendra_kumar80 30th December 2018 11:34 AM

## Why displacement current is induced in a coil by change in magnetic flux produced by another coil in vicinity?

Asked by kpbhake 10th January 2019 6:52 PM

## An electron and a proton having equal momenta enter a uniform magnetic field at right angles to the field lines. What will be the ratio of the radii of curvature of their trajectories?

Asked by Nareshthakur4321nct 17th January 2019 9:24 AM

## Define magnet

Asked by prembiswakarma 31st January 2019 7:03 PM

## A MAGNETISED NEEDLE IN A UNIFORM MAGNETIC FIELD EXPERIENCES A TORQUE BUT NO NET  FORCE. HOWEVER, AN IRON NAIL NEAR A BAR MAGNET EXPERIENCES A FORCE OF ATTRACTION IN ADDITION TO TORQUE. EXPLAIN

Asked by pardeepkumar2281 6th February 2019 8:21 PM

## MUST EVERY MAGNETIC CONFIGURATION HAVE NORTH POLE AND SOUTH POLE AND CAN WE THINK OF MAGNETIC FIELD CONFIGURATION WITH THREE POLES ?

Asked by pardeepkumar2281 6th February 2019 8:24 PM

## THE EARTH'S MAGNETIC FIELD AT THE EQUATOR IS APPOROXIMATELY 0.4G. ESTIMATE THE EARTH'S DIPOLE.

Asked by pardeepkumar2281 6th February 2019 8:26 PM

## What is magnet

Asked by abhishek5101singh 12th February 2019 7:38 PM

## Parallel conductors

Asked by alanpeter9611 14th February 2019 5:21 PM

## what does it mean by like magnetic needle is placed in plane of paper .plane of paper eans how is it kept?

Asked by rakatesahil 15th February 2019 9:30 AM

## Why does magentic north deviate from the true north

Asked by atupongen13 26th February 2019 9:32 AM

## Find  the magnitude and direction

Asked by alanpeter9611 1st March 2019 12:44 AM

## Q no 2

Asked by manasvijha 25th March 2019 7:40 AM

## Q no 32

Asked by manasvijha 25th March 2019 7:41 AM

## the expression for the potential energy of acurrent loop  when it is placed in amagnetic field

Asked by anithaguthula666 29th March 2019 9:43 PM

### NEET NEET Physics

Asked by ntg432000 30th March 2019 10:03 PM

## derivation and expression for the magnetic induction at point dou to strith current carring condoctor

Asked by bhurkeshiva 16th April 2019 11:06 PM

## Magnetic field created at the nucleus ?please explain the concept too

Asked by nipunverma59 23rd April 2019 8:31 PM

## battery is connected between point X and y on the circumference of uniform conducting ring of radius a and resistance R, . the smaller arc between X and y substance and angle 60 degree at the centre and magnetic induction at O  due to current in the small arc is 0.1 tesla in outward direction. magnetic induction at O produce current in large arc between X and y is:- 1) 0.6T in the inward direction. 2)0.1T in the inward direction. 3)0.6T in the outward direction. 4)0.1 T in outward direction.

Asked by jhajuhi19 25th April 2019 6:21 PM

## Why can't the south pole of the magnetic needle deflect in Ampere swimming Rule??

Asked by pratishapranisha153 21st May 2019 9:45 PM

## Question:A particle having a mass of 10–2 kg carries a charge of 5 × 10–6 C. The particle is given an initial horizontal velocity of 105 ms–1 in the presence of electric field  and magnetic field . To keep the particle moving in a horizontal direction, it is necessary that     (1)  should be perpendicular to the direction of velocity and  should be along the direction of velocity.     (2) Both  and  should be along the direction of velocity.     (3) Both  and  are mutually perpendicular and perpendicular to the direction of velocity.     (4)  should be along the direction of velocity and  should be perpendicular to the direction of velocity.     Which one of the following pairs of statements is possible?   1.   (1) and (3)  2. (3) and (4) 3.  (2) and (3)  4.  (2) and (4)

Asked by minipkda 26th May 2019 3:17 PM

## What will be the answer for this question?

Asked by dineshchem108 29th May 2019 11:12 PM

## What is magnetic field

Asked by Yhatsh328 20th June 2019 4:16 AM

## Explain briefly about magnetic field

Asked by Ananyaaqua25 26th June 2019 10:49 PM

## What is the difference between magnetic flux and magnetic field?

Asked by dr.sudhiguptajdmd74 11th July 2019 5:03 PM

## Two wires a and b carrying equal currbts of 10 ampere are placed parallel to each other with a separation of 4 cm between them as shown in fig. Find the magnetic field at P ,Q .

Asked by prakriti12oct 27th July 2019 12:27 PM

## magnetic field lines dilate or contract laterally?

Asked by rath.ishan 12th August 2019 2:37 PM

## Urgent... Plz plz solve this numerical attached below.

Asked by subhrajayanta64 25th August 2019 3:28 AM

## Please Sir, solve the problem in the picture.  What is Curl of H in case of magnetic dipole? Please clear my doubt.

Asked by subhrajayanta64 3rd September 2019 12:20 AM

## What is difference in magnetic lines of solenoid and of bar magnet

Asked by vatsalm570 4th September 2019 3:14 PM

## Sir please solve the mcq,provide steps...

Asked by subhrajayanta64 10th September 2019 4:37 AM

## A toroid having inner and Outer diameter with 5 centimetre and 10 centimetre carrying a current of 10 ampere if it consists 20 turns find the magnetic field due to toroid

Asked by k_shubhankit16122001 12th September 2019 11:52 AM

## If it is in the north south direction the formula for tan b should be used and ans should be cube root 4 * 10^-2

Asked by prakriti12oct 6th October 2019 11:29 PM

### NEET NEET Physics

Asked by Prashant DIGHE 2nd November 2019 4:30 PM

### NEET NEET Physics

Asked by Prashant DIGHE 5th December 2019 9:47 PM

### NEET NEET Physics

Asked by Prashant DIGHE 6th December 2019 10:31 PM

### NEET NEET Physics

Asked by Prashant DIGHE 6th December 2019 10:52 PM

### NEET NEET Physics

Asked by Prashant DIGHE 6th December 2019 10:54 PM

### NEET NEET Physics

Asked by Prashant DIGHE 6th December 2019 10:56 PM

## the magnetic field B at the centre of circular coil of radius r is π times that due to a long straight wire at a distance r from it, for equal currents. The adjoining diagram shown three cases in all cases the circular part has radius r and straight one are infinitely long. For the same current the field B at the centre P in cases 1,2,3 has the ratio

Asked by Prashant DIGHE 7th December 2019 10:15 PM

### NEET NEET Physics

Asked by Prashant DIGHE 7th December 2019 10:18 PM

### NEET NEET Physics

Asked by Prashant DIGHE 7th December 2019 10:22 PM

## Plz solve 5th sum

Asked by lovemaan5500 2nd January 2020 8:48 PM

## Factors of magnetic field

Asked by anjalimonde82 12th January 2020 7:53 PM

## What is the direction of the magnetic field?

Asked by bindu.jayant 15th January 2020 10:46 AM

## A closed loop of magnetic field is produced by a changing electric field. Are electric field and time varing electric fiels necessarily non zero at all points on tte loop and in the area enclosed by the loop?

Asked by Himanshukesarwani97 20th January 2020 10:22 PM

## Why can't magnetic field lines around a bar magnet straight? Any specific reason why they always start from north pole and end at the south pole? Why should they ever form closed loops? Can't they just go on as straight lines without converging?

Asked by saisindhumanasai 21st January 2020 9:24 AM

## Describe an activity to 1) demonstrate the pattern of magnetic field lines around a straight conductor carrying current and 2) find the direction of the magnetic field produced for a given direction of current in a conductor.

Asked by subbukum 26th January 2020 10:26 AM

## Describe an activity to 1) demonstrate the pattern of magnetic field lines around a straight conductor carrying current and 2) find the direction of the magnetic field produced for a given direction of current in a conductor. Answer has not been uploaded for this question even though it says that it has been answered

Asked by subbukum 26th January 2020 2:04 PM

## what is magnetic field between plates

Asked by ashutosharnold1998 3rd February 2020 4:24 PM

## List two factors on which the strength of the magnetic field lines produced by a solenoid depends.

Asked by subbukum 4th February 2020 2:24 PM

## What happens when we increase the number of turns in a solenoid?

Asked by kaur234harpreet 5th February 2020 6:52 PM

## name the device in which a current carrying conductor and magnetic field are used

Asked by dharmrajsinhparmar79 14th February 2020 9:41 AM

## Why a north pole iron rod repel to another iron rod of north pole?

Asked by devipanda.tupu 19th February 2020 11:34 PM

## Name the device and it's use which is based on the above phenomenon. Earths magnetic device

Asked by Vidhatri.urs 22nd February 2020 10:03 PM

## Ques 9 plz

Asked by lovemaan5500 22nd February 2020 10:14 PM

## 8th ques

Asked by lovemaan5500 22nd February 2020 10:16 PM

## Will magnetic field lines intersect when two unlike poles of a magnet attract?

Asked by binduanand661 28th February 2020 3:34 PM

## energy associated with a moving charges with due to

Asked by sunithakeerthimonishkumar 4th April 2020 10:34 AM

### NEET NEET Physics

Asked by Prashant DIGHE 10th April 2020 9:40 PM

## pls solve

Asked by mufeedatvp2000 19th April 2020 12:01 PM

## In Fleming's left hand rule which finger show the direction of magnetic field

Asked by rockarkk32 26th April 2020 7:18 PM

## S is the surface of lump of magnetic material a)Lines of B are necessarily continuous across S b)Some lines of B must be discontinuous across S c)Lines of H are necessarily continuous across S d)Lines of H cannot all be continuous across S

Asked by bhuvanshetty1340 2nd May 2020 7:18 PM

## A current-carrying circular loop lies on a smooth horizontal plane. A) Can a uniform magnetic field be set up in such a manner that the loop turns around itself (i.e., turns about the vertical axis). (b) A current-carrying circular loop is located in a uniform external magnetic field. If the loop is free to turn, what is its orientation of stable equilibrium? Show that in this orientation, the flux of the total field (external field + field produced by the loop) is maximum. (c) A loop of irregular shape carrying current is located in an external magnetic field. If the wire is flexible, why does it change to a circular shape?

Asked by manishjs222 5th May 2020 3:52 PM

## what is magnet

Asked by swamigitesh9531.6sdatl 11th May 2020 1:04 PM

## 1

Asked by jppandey.ncc 20th May 2020 8:58 PM

## The question is uploaded image

Asked by anjurtpp 21st May 2020 12:01 PM

## Why is the property of magnet that like pole repel

Asked by dhimantsinhsolanki4683.7sdatl 22nd May 2020 11:48 AM

## Explain the  activity  to show the end is produced  along the straight current carrying conductor

Asked by kavithakavitha42724 27th May 2020 1:19 PM

## Pls explain it

Asked by saumyapurohit666 3rd June 2020 6:32 PM

### NEET NEET Physics Magnetic Effects of Current and Magnetism

Asked by jhajuhi19 6th June 2020 6:10 PM

## describe an activity to show magnetic field lines around a current carrying circular conductor

Asked by gurjinder1234g 10th June 2020 11:49 AM

## pls explain

Asked by sulaikhasulu393 13th June 2020 2:24 PM

## Show with the help of an activity that a force is exerted on the current carrying conductor when placed in a magnetic field.

Asked by aryansingh200499 10th July 2020 6:27 PM

## With the help of a diagram of experimental setup describe an activity to show that the force acting on a current carrying conductor placed in a magnetic field increases with increase in field strength.

Asked by arajeevshashank 13th July 2020 12:41 PM

## what is a magnetic field

Asked by sandhyasharma510 15th July 2020 4:31 PM

## A beam of 30 emv alpha -  particle is to be obtained from 50 cm cyclotrone. Find the strength of the magnetic field to be applied

Asked by Mallikarjun1972 30th July 2020 4:03 PM

## A loop of irregular shape carrying current is located in an external magnetic field. If the wire is flexible, why does it change to a circular shape?

Asked by kbsahilsid18 13th August 2020 10:02 AM

## What are characteristic of magnetic field

Asked by neenasingh81 30th August 2020 7:25 PM

## Magnetic field inside solenoid

Asked by gargchalsy 28th September 2020 11:52 AM

## A charge is moving with 5 m/s. when the charge enter a region having magnetic field, speed of charge is?

Asked by nelsonsanabam46 10th November 2020 9:27 AM

### CBSE XII Science Physics

Asked by nelsonsanabam46 13th November 2020 6:29 PM

### CBSE XII Science Physics

Asked by sanabamdiana46 13th November 2020 6:33 PM

## Magnetic field due to current through a circular loop

Asked by meetmaheshwari08022004 31st January 2021 1:32 PM

## explain an activaty to plot the magnetic field lines produced around a straight current carrying conductor

Asked by maheshmahesh12797 2nd May 2021 8:56 PM

## explain faradays experiment of magnet and coil.

Asked by deekshith.m21122006 24th May 2021 7:47 PM

## 114

Asked by dunnanagamani02 30th May 2021 8:07 AM

## As we know, work done by Magnetic force is always zero in moving a charged particle./So it cannot change speed of charged particle. MY doubt is that, can magnetic force change direction of motion of charged particle?

Asked by yashrajgharte24.12dgatl 25th October 2021 6:53 PM

## Find magnetic field Bp/Bc=?

Asked by Vipulgautam050 27th October 2021 11:47 PM

## if the current is flowing in the diretioning of magnetic field lines

Asked by ishika2004sharma12 10th December 2021 8:18 PM

## The value of magenetic field produced by coduction current and displacement current are equal at the edges ofor capacitor or not?

Asked by 0987gauranshi 4th January 2022 2:33 PM

## Pls answer the following questions giving proper reasons

Asked by abhay.saha4517 8th January 2022 5:41 PM

## Does AC current create magnetic effect?

Asked by abhay.saha4517 12th January 2022 6:28 PM

## What is the magnitude and direction of the magnetic field due to straight current carrying wire on that wire? In the uploaded image, two wires are at right angles in a plane carry equal currents. At what points in the plane is the magnetic field zero?

Asked by arjunsah797 24th January 2022 4:14 PM

## I have one more doubt in the previous question I asked.  Doubt: In the figure, what will be the net magnetic field between the wires on the point of intersection. (I think the direction of the magnetic fields due to the two wires won't be opposite on the point of intersection between the wires so, the net magnetic field should not be zero there..)

Asked by arjunsah797 25th January 2022 9:31 AM

### CBSE XII Science Physics Moving Charges and Magnetism

Asked by arjunsah797 16th March 2022 2:07 PM

## how to think

Asked by ansh.bharso 16th August 2022 1:42 PM

### NEET NEET Physics Magnetic Effects of Current and Magnetism

Asked by vanshkamboj598 24th August 2022 10:47 PM