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Standard XII

Physics

Motional EMF

A ring of rad...

Question

A ring of radius a and resistance per unit length $λ$ slides along two long parallel rails connected by means of a vasistance R at one end. Find the current through the resistance.

z e r o

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\frac{4 B a v}{2 R + π a λ}

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\frac{4 B a v}{R + π a λ}

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\frac{B a v}{2 R + 2 π a λ}

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Solution

The correct option is B $\frac{4 B a v}{2 R + π a λ}$

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