AC Fundamentals » Exercise - 1 25. The rms value of the voltage for a voltage function υ = 10 + 5cos(628t+300) volts through a circuit is ________. (a) 5 V (b) 10 V (c) 10.6 V (d) 15 V
AC Fundamentals » Exercise - 1 23. A sine wave has a positive going zero crossing at 00 and an rms value of 20 V. What is its instantaneous value at 1450 ________. (a) 7.32 V (b) 16.22 V (c) 26.57 V (d) 21.66 V
AC Fundamentals » Exercise - 1 17. A power factor of ‘1’ indicates ________. (a) purely resistive circuit (b) purely reactive circuit (c) combination of both, a and b (d) none of these