3) Figure shows a RL circuit and a conducting rod. RL circuit has ɛ = 35 V, R = 7 2, and the time constant t= 1 s. A conducting rod moves with a constant velocity v perpendicular to a circuit with a current I. At t=1 s, in the circuit, the current I is generated. (a) Find the magnetic field. (b) Find the magnetic flux. (c) Find the induced emf. R r I L ll L

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