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Agniveer Navy Moving Charges and Magnetism — practice questions

3 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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Magnetic field on the axis of a circular loop at distance x from center:A proton moves north at $10^6$ m/s in a magnetic field of $0.1$ T pointing east. The magnetic force on it is:A long straight wire carries $5$ A. The magnetic field $0.10$ m away from the wire is: