Two identical coils A and B are arranged coaxially as shown…

Physics Electromagnetic Induction Faraday's and Lenz's Law MCQ (Single Correct)

Two identical coils A and B are arranged coaxially as shown in the figure and the sign convention adopted is that the direction of currents are taken as positive when they flow in the direction of arrows. Which of the following statement is correct-

If A carries a steady positive current and A is moved towards B, than a positive current is induced in B.

If A carries a steady positive current and B is moved towards A, then a negative current is induced in B

If both coils carry positive current, then the coils repel each other.

If a positive current flowing in A is switched off, then a negative current is induced momentarily in B

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