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The resultant of two alternating sinusoidal voltages or currents can be found using ___________(a) Triangular law(b) Parallelogram law(c) Either triangular or parallelogram law(d) Neither triangular nor parallelogram lawI had been asked this question by my school teacher while I was bunking the class.This interesting question is from Phasor Diagrams Drawn with RMS Values Instead of Maximum Values topic in section Alternating Voltage and Current of Basic Electrical Engineering

Answer» RIGHT OPTION is (b) PARALLELOGRAM law

Explanation: The resultant current can be FOUND by using the parallelogram law of additionI^2 = I1^2 + I2^2 + 2I1I2 cosθ.


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