Question

By Faraday's Law, if a conducting wire of length ℓ meters moves at velocity v m/s perpendicular to a magnetic field of strength B (in teslas), a voltage of size V = −Bℓv is induced in the wire. Assume that B = 8 and ℓ = 0.7. Find the rate of change dV/dv.

Answer 1

V = -Bρv
dV/dv = -Bρ = -8 x 0.7 = -5.6