A wire is carrying a direct current of 20A and a sinusoidal alternating current of peak value 20A. Find the rms value of the resultant current.

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A wire is carrying a direct current of 20A and a sinusoidal alternating current of peak value 20A. Find the rms value of the resultant current.

asked Oct 19, 2021 in Education by JackTerrance

A wire is carrying a direct current of 20A and a sinusoidal alternating current of peak value 20A. Find the rms value of the resultant current. (a) 24 (b) 24.5 (c) 25 (d) 25.5 The question was posed to me during an interview. My doubt is from Voltage and Current Values of a Sine Wave in portion Introduction to Alternating Currents and Voltages 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)

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JackTerrance · Answer 1 · 2021-10-19T05:22:07+0000

The correct answer is (b) 24.5 To elaborate: Direct current = 20A, sinusoidal alternating current of peak value = 20A. The rms value of the combined wave = √(20^2+20^2/2) = 24.5A.