contestada

Consider the rate PL at which energy is being stored in the R*L circuit of (Figure 1). Answer these questions, in terms of E, R and L as needed.
Part A: What is PL at t = 0, just after the circuit is completed? Express your answer in terms of some or all of the variables E, R, and L.
Part B: What is PL at t→[infinity], a long time after the circuit is completed? Express your answer in terms of some or all of the variables E, R, and L.
Part C: What is PL at the instant when i=E/2R, one-half the current's final value? Express your answer in terms of some or all of the variables E, R, and L.