Networks Analysis and Synthesis - Engineering

Q1:

Two voltages 50 V each have a phase difference of 45°. The rms value of resultant sum of the two voltages is

A 70.7 V

B 80.4 V

C 92.4 V

D 100 V

ANS:C - 92.4 V

RMS value = (50 + 50 x 0.707)2 + (50 x .707)2.