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In a cylinder region of radius R, a unif...

In a cylinder region of radius `R`, a uniform magnetic field is there which is increasing with time, according as `B = B_(0)t^(2)`. A positive point charge `q` is released from rest at `P(OP = (R )/(2))` at `t = 0` [the instant the field is switched on]

The force experienced by, the point charge at `t = 1s`, is `(R = 2m)`

A

`qB_(0)`, anti-clockwise

B

`qB_(0)`, clockwise

C

`2qB_(0)`, anti-clockwise

D

`2qB_(0)`, clockwise

Text Solution

Verified by Experts

The correct Answer is:
C
At `P, E = B_(0)t`, so force, `F = qB_(0)t` in anti-clockwise (direction form Lenz's law)
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