Doubt in Electromagnetism

Is the answer B bro?

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yes can u send a solution plz


Hope you got it

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I am concerned about how the sin(wt) came into the picture physically
like why is this theta defined from point A and not D

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bro \theta is the angle between x axis and CD or AB when it once starts moving…
it comes in the picture because force is F=q VxB so sin\theta will drop in…
solution tag de do fir :sweat_smile: :sweat_smile:

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Ah i am able to visualize this now thx!

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