Networks Analysis and Synthesis - Engineering

Q1:

An input voltage V(t) = 10 2 cos (t + 10°) + 10 3 cos (2t + 10°)V is applied to a series combination of resistance R = 1 kΩ inductance L = 1H. The resulting steady-state current i(t) in ampere is

A 10 cos (t + 55°) + 10 cos (2t + 10° tan-12)

B
10 cos (t + 55°) + 103/2 cos (2t + 55°)

C 10 cos (t - 35) + 10 cos (2t + 10° - tan-12)

D
10 cos (t - 35) + 103/2 cos (2t + 35°)

ANS:C - 10 cos (t - 35) + 10 cos (2t + 10° - tan-12)

The steady state current i(t) = i1(t) + i2(t)