CBSE 2024 · Region 5 · Set 1 · Q14 · 1 mark
Assertion (A) : The energy of a charged particle moving in a magnetic field does not change.
Reason (R) : It is because the work done by the magnetic force on the charge moving in a magnetic field is zero.
Official answer
From CBSE’s own marking scheme for this paper.
(A)
If both Assertion (A) and Reason (R) are true and Reason (R) is correct explanation of Assertion (A).
Moving Charges and MagnetismMotion in a Magnetic FieldUnderstandassertion_reasonmedium
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.