Published by:
CGP EDU Academic Team
Published on: September 12, 2026
The source of time varying magnetic field may be
Text Solution
Verified by ExpertsThe correct answer is:
B
An electric field varying linearly with time will not produce variable magnetic field as current will be constant.
A decelerating charged particle can result in a time varying magnetic field by emitting radiation.
Similarly, a permanent magnet has a constant magnetic field and a direct current does not change its direction and cannot produce a magnetic field.
An antenna can modulate the digital signals.
So, the right option is the statement D.
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