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Motion In Combined E And B Fields Free Doubts and Solutions

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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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CBSE - XII Science - Physics - Moving Charges and Magnetism

Write any two uses of cyclotron.

Asked by Topperlearning User 8th May 2015, 10:32 AM
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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
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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
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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
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CBSE - XII Science - Physics - Moving Charges and Magnetism

CONVERSION OF GALVANOMETER TO AMMETER
 

Asked by Sandeep Yadav 7th February 2015, 9:59 PM
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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
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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
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