Consider the circuit in Active Figure below. Suppose the cir…

Consider the circuit in Active Figure below. Suppose the circuit elements have the following values: emf =  12.0 V, R = 6.00 ohm, and L = 30.0 mH. (A)  Find the time constant of the circuit. (B) Switch S2 is at position a, and switch S1 is thrown closed at t = 0. Calculate the current in the circuit at t =2.00 ms. (c)  Compare the potential difference across the resistor with that across the inductor. Discuss how the potential difference across resistor and inductor change over time.  Capture22(1).PNG

A coil consists of 210 turns of wire. Each turn is a square…

A coil consists of 210 turns of wire. Each turn is a square of side d = 18 cm, and a uniform magnetic field directed perpendicular to the plane of the coil is turned on. If the field changes linearly from 0 to 0.50 T in 0.67 s, what is the magnitude of the induced emf in the coil while the field is changing?   If the resistance in the coil is 2.0 Ω, what is the magnitude of the induced current in the coil while the field is changing?