Question

Determine the total impedance in the circuit. (a) 73.3∠33⁰ (b) 83.3∠-33⁰ (c) 83.3∠33⁰ (d) 73.3∠-33⁰ I got this question in unit test. Enquiry is from Parallel Circuits topic in section Complex Impedence of Network Theory Select the correct answer from above options network theory questions and answers, network theory questions pdf, network theory question bank, network theory gate questions and answers pdf, mcq on network theory pdf, gate network theory questions and solutions, network theory mcq Test , ies network theory questions, Network theory Questions for GATE EC Exam, Network Theory MCQ (Multiple Choice Questions)

Answer 1

Correct option is (b) 83.3∠-33⁰ To elaborate: Z = VS/IT = 20∠0⁰ / 0.24∠33⁰ = 83.3∠-33⁰Ω. The phase angle indicates that the total line current is 0.24 A and leads the voltage by 33⁰.