Question

A series RL circuit with r=100 ohm and L= 20H has a DC voltage of 200V applied through a switch at t= 0 find a) the equation of the current and voltage across the different elements. b)the current t=1 Sec.

Answer 1

Answer:

a) i(t) = 2(1 - e^(-5t)) A

vR(t) =200 e^(-5t) V

vL(t) = 200(1 - e^(-5t))

b) i(1) = 1.986 A