Question

A particle of charge +q and mass m moving under the influence of a uniform electric field and uniform magnetic field follows a trajectory from P to Q as shown in fig. The velocities at P and Q are and which of the following statement(s) is/are correct?

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This question has multiple correct options
A

B

Rate of work done by the electric field at P is

C

Rate of work done by the electric field at P is zero

D

Rate or work done by both the fields at Q is zero

Hard
Updated on : 2022-09-05
Solution
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Correct options are A) , B) and D)

From the work- energy theorem



At P rate of work done by E field will be 


At Q rate of work done

And work done by magnetic field is always zero.

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