Question

In the circuit given below, the current source is 1 A, voltage source is 5 V, R1 = R2 = R3 = 1 Ω, L1 = L2 = L3 = 1 H, C1 = C2 = 1 F. The current through R3 is _________

(a) 1 A

(b) 5 A

(c) 6 A

(d) 8 A

This question was addressed to me during an interview.

Asked question is from Calculation of I(0+), di/dt(0+), d2I/dt2(0+) in Circuits Involving both Capacitor and Inductor in section Application of the Laplace Transform in Circuit Analysis of Network Theory

Answer 1

Correct answer is (b) 5 A

For explanation: At steady state, the circuit becomes,

∴ The current through R3 = \(\frac{5}{1}\) = 5 A.