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CBSE - XII Science - Physics - Moving Charges and Magnetism
An electron moves in a circular orbit of radius 0.51A around a nucleus at a frequency of 6.8times10^(15)Hz .Estimate the magnetic field at the nucleus
Asked by bogarpradnya
3rd March 2020,
8:42 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
how are the magnetic field lines different from the electrostatic field lines.
Asked by 101206077443105
2nd September 2018,
8:56 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
a neutron an electron and an alpha particle moving with equal velocities , enter a uniform electrical magnetic field .trace the path of each particle.
Asked by vasturushi
3rd August 2017,
8:04 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
The dees are provided with the current, which in turn will produce magnetic field other that the provided external magnetic field. will there be any effect of this magnetic field created by the dees on the motion of the particle inside the cyclotron? If yes then explain, if not explain why not?
also,
how is the particle revolution and the change in polarity synchronised?
please answer both the questions separately
The dees are provided with the current, which in turn will produce magnetic field other that the provided external magnetic field. will there be any effect of this magnetic field created by the dees on the motion of the particle inside the cyclotron? If yes then explain, if not explain why not?
also,
how is the particle revolution and the change in polarity synchronised?
please answer both the questions separately
Asked by anusha bala
15th July 2016,
11:10 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Time period is calculated for one complete revolution but in cyclotron proton completes only half revolution then changes its radius due to spiral revolution even though we calculate time period for it is correct or wrong to calculate like that?
Asked by anusha bala
15th July 2016,
1:03 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
when a body travels with speed nearly equal to light's speed we say that its mass becomes infinity but how and in what form mass is created i maenwhat is created an electron, proton, quatrz, neutron what thing is created that adds up to mass of body?
Asked by upmaniousagarika
8th June 2016,
11:29 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
An athelete peddles a stationary tricycle whose pedles are attached to a coil having 100 turns each of area 0.1 m2 . The coil, lying in the X-Y plane, is rotated , in this plane , at the rate of 50rpm , about the Y- axis , in a region where a uniform magnetic field , B = (0.01)k^ tesla, is present . Find the i) Maximum emf ii) average emf generated in the coil over one complete revolution.
Asked by vinitapahel123
13th December 2015,
11:55 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Two protons separated by a distance 'r' travelling n the same direction with velocity 'v' show that the ratio of magnetic and electric forces acting between them is (v/c)^2, c is the speed of light.
Asked by Tanya raj
21st August 2015,
8:19 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
The magnetic field at two points on the axis of a circular coil at distance 0.05m and 0.2m from the centre are in the ratio 8:1.find the radius of the coil?
Asked by rahularun2000
19th June 2015,
7:05 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
State the principle of working of a cyclotron. Write two uses of this machine.
Asked by Topperlearning User
21st May 2015,
12:54 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
A cyclotron oscillator frequency is 20 MHz. what should be the operating magnetic field for accelerating protons? If the radius of its dees is 80 cm, what is the kinetic energy of the proton beam produced by the accelerator? () ()
Asked by Topperlearning User
18th May 2015,
2:23 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
An electron after being accelerated through a potential difference of 150 V enters a uniform magnetic field of 0.0005 T perpendiculars to its direction of motion. Calculate the radius of the path described by the electron.
Asked by Topperlearning User
18th May 2015,
2:21 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
With the help of a labeled diagram, explain the principle and construction of a cyclotron.
Asked by Topperlearning User
18th May 2015,
2:16 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Explain the principle of a Velocity Selector
Asked by Topperlearning User
18th May 2015,
2:11 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Why the ions can not be accelerated beyond a certain limit in a cyclotron?
Asked by Topperlearning User
18th May 2015,
2:02 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
What will be the force on a charged particle moving in a region where uniform electric as well as magnetic field are acting?
Asked by Topperlearning User
18th May 2015,
11:11 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
A uniform circular disc of radius r rolls without slipping with a constant velocity on a stationary horizontal surface. Find the distance covered by a point P on its circumference in one full rotation.
Asked by Sourav
8th May 2015,
12:38 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Derive an expression for maximum energy gained by the positive ion using a cyclotron.
Asked by Topperlearning User
8th May 2015,
10:46 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
What do you mean by cyclotron frequency?
Asked by Topperlearning User
8th May 2015,
10:39 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
An electron beam was deflected in a given field which was perpendicular to the beam. The beam follows a parabolic path after deflection. Give answer whether the field was electric field or magnetic field.
Asked by Topperlearning User
8th May 2015,
10:33 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Why the set up of cyclotron is placed in an evacuated chamber?
Asked by Topperlearning User
8th May 2015,
10:32 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Write any two uses of cyclotron.
Asked by Topperlearning User
8th May 2015,
10:32 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Why cyclotron is not suitable for accelerating electrons?
Asked by Topperlearning User
8th May 2015,
10:31 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
Why cyclotron can not be used to accelerate neutron?
Asked by Topperlearning User
8th May 2015,
10:30 AM
CBSE - XII Science - Physics - Moving Charges and Magnetism
An electron is moving on a circular orbit of radius r with speed v.It produces a magnetic feild B at its centre,then radius of circle is proprortional to;
Options:
1.v/B
2.v/Bsquare
3.[v/B]square
4.[v/B]raised to power half
Asked by Kb Aulakh
20th April 2015,
4:53 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
CONVERSION OF GALVANOMETER TO AMMETER
Asked by Sandeep Yadav
7th February 2015,
9:59 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
a 10 g bullet having charge of 4microC is fired at a speed of 270 m/s in a horizontal direction.a vertical magnetic field of 500microT exist in the space.find the deflection of the bullet due to magnetic field as it travelles through 100m.
Asked by HARSHALI DOSHI
3rd October 2014,
6:11 PM
CBSE - XII Science - Physics - Moving Charges and Magnetism
what is the use of magnetic field in cyclotron???????????????????explain...please@@@@@@@@@@
Asked by Samson Shaji Varghese
11th July 2014,
5:50 PM
