Question

What is the load current in the following circuit?

(a) 1.66∠90⁰

(b) 1.66∠0⁰

(c) 2.66∠0⁰

(d) 2.66∠90⁰

This question was addressed to me in semester exam.

My question comes from Maximum Power Transfer Theorem in division Useful Theorems in Circuit Analysis of Network Theory

Answer 1

The correct answer is (b) 1.66∠0⁰

The best explanation: The load current is the ratio of voltage to the impedance. So the load current is I = (50∠0^o)/(15+j20+15-j20) = 1.66∠0^o A.