A rod directed from A to B has length vector ℓ and moves with velocity v in a uniform magnetic field B. Which expression gives the potential of B relative to A after charge separation?
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A rod directed from A to B has length vector ℓ and moves with velocity v in a uniform magnetic field B. Which expression gives the potential of B relative to A after charge separation?

G1 Physics · Accepted Answer

At equilibrium E = −v×B inside the moving conductor and V(B)−V(A) = −∫A→B E·dℓ = (v×B)·ℓ.