In a closed ring (a) and in an open ring (b) magnets are falling along the axis of the ring. The current generated in (a) and (b) have which directions if observed from top?

clockwise, anti-clockwise

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anti-clockwise, clockwise

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clockwise, zero

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anti-clockwise, zero

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Solution

The correct option is C clockwise, zero
According to Lenz's law the current generated in (a) shall develop S pole to oppose the cause producing it. Therefore current is clockwise. In (b) the circuit is open. Therefore no current will flow.

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In a closed ring (a) and in an open ring (b) magnets are falling along the axis of the ring. The current generated in (a) and (b) have which directions if observed from top?

The correct option is C clockwise, zeroAccording to Lenz's law the current generated in (a) shall develop S pole to oppose the cause producing it. Therefore current is clockwise. In (b) the circuit is open. Therefore no current will flow.

The correct option is C clockwise, zero
According to Lenz's law the current generated in (a) shall develop S pole to oppose the cause producing it. Therefore current is clockwise. In (b) the circuit is open. Therefore no current will flow.