For the circuit in Fig. 7.88, if v = 10e–4t V and i = 0.2 e–4t A, t > 0(a) Find R and C...

For the circuit in Fig. 7.88, if v = 10e–4t V and i = 0.2 e–4t A, t > 0

(a) Find R and C .

(b) Determine the time constant.

(c) Calculate the initial energy in the capacitor.

(d) Obtain the time it takes to dissipate 50 percent of the initial energy.