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Assertion: Power of a magetic force on a...

Assertion: Power of a magetic force on a charged particle is always zero.
Reason: Power of electric force on charged particle cannnot be zero.

A

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

C

If Assertion is true, but the Reason is false.

D

If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C
`:. F_m=q(vxxB)`
`F_m_|_v` (always)
`and P=F.v`
. Power of magnetic force is always is zero.
`F_e=qE`
If `Fe` is also perpendicular to v, then its power is also zero.
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