And please explain why? The marked answer in the image above is not necessarily

Question

And please explain why? The marked answer in the image above is not necessarily correct

Whenever connected to an electric generator by means of a wire, an inductor will have O O O O O a changing magnetic field inside it, although the current is constant. an induced electric current that cancels any changes in the magnetic flux. an induced magnetic field that increases exponentially with time. an induced magnetic field that oscillates at the same frequency as the current. a changing current, although the magnetic field inside is constant.

Explanation / Answer

* If electric generator is D.C battery then current in inductor increases exponentialy and hence induced magnetic field increases with time.s

* If Generator is A.C source current in inductor oscillate sinusoidaly and hence induced magnetic field also oscillates at same frequency.

*

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