Chapter 14, Problem 7E

The following voltage sources Ae^Bt cos(Ct + θ) are connected (one at a time) to a 280 Ω resistor. Calculate the resulting current at t = 0, 0.1, and 0.5 s, assuming the passive sign convention:

(a)    A = 1 V, B = 0.2 Hz, C = 0, θ = 45°;

(b)    A = 285 mV, B = −1 Hz, C = 2 rad/s, θ = −45°.