railway DFCCIL Executive 2025 Mock Test Network Theory Sinusoidal Steady State Analysis RMS Value of Time Varying Waveforms
The rms value of the resultant current in a wire which carries a dc current of 20 A and a sinusoidal alternating current of peak value 20 A is
1
34.1 A
2
17.3 A
3
24.5 A
4
40.0 A