In the accompanying figure, the rails, connecting end pieces, and rod all have a resistance per...

 

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In the accompanying figure, the rails, connecting end pieces, and rod all have a resistance per unit length of 32/cm. The rod moves to the left at v= 2.5 m/s. If B= 0.8 T everywhere in the region, what is the current in the circuit (a) when a = 6 cm? (b) when a = 3 cm? B Hint In the accompanying figure, the rails, connecting end pieces, and rod all have a resistance per unit length of 32/cm. The rod moves to the left at v= 2.5 m/s. If B= 0.8 T everywhere in the region, what is the current in the circuit (a) when a = 6 cm? (b) when a = 3 cm? B Hint