The finished circuit in the figure forms a flat 8-figure, located in the plane. The large loop in 8-figure has area 3A and the small loop area A. The total resistance of the circuit is R, and its self-inductance L.

There is no contact between the conductors where they cross. At the time t = 0 a time-dependent homogeneous external magnetic field is switched on B (t) = alpha * t, which points perpendicularly into the plane of the paper. alpha is a positive constant.

There is no current flowing in the circuit for t

Question

The finished circuit in the figure forms a flat 8-figure, located in the plane. The large loop in 8-figure has area 3A and the small loop area A. The total resistance of the circuit is R, and its self-inductance L. 

There is no contact between the conductors where they cross. At the time t = 0 a time-dependent homogeneous external magnetic field is switched on B (t) = alpha * t, which points perpendicularly into the plane of the paper. alpha is a positive constant. 

There is no current flowing in the circuit for t < and equal 0. 

Part a) Find the magnitude of the induced electromotive

anonymous · Answer

Part b) Calculate the current i(t) in the circuit for t > 0. Calculate the energy W dissipated in the resistor R in the period 0 <t < ts