Question: The electrical circuit illustrate has the following features
Inductance "L" = 0.2 Henry
Resistance "R" = 4Ω
Excitation V = 10t 0 ≤ t ≤ -10s
Initially I = 0 when t = 0
(Clock is started when switch "S" is closed)

(A) Find the differential equation and use the initial conditions to determine the constant of integration
(B) Compute the current after 5 second
(C) Calculate the differential equation which involves rate of change of current "I" with respect to time "t" in the range 0 ≤ t ≤ 10c