AC Fundamentals, Circuit and Circuit Theory The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? VC and VL VL and VR VC and VR None of these VC and VL VL and VR VC and VR None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The form factor is the ratio of r.m.s. value to average value None of these Average value to r.m.s. value Peak value to r.m.s. value r.m.s. value to average value None of these Average value to r.m.s. value Peak value to r.m.s. value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Skin effect occurs when a conductor carries current at _________ frequencies. Low Medium High Very low Low Medium High Very low ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of pure cosine function is Same as peak value 0.707 of peak value Zero 0.5 of peak value Same as peak value 0.707 of peak value Zero 0.5 of peak value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to None of the listed here R.m.s. voltage Peak voltage Average voltage None of the listed here R.m.s. voltage Peak voltage Average voltage ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The period of a sine wave is ___________ seconds. Its frequency is 20 Hz 40 Hz 30 Hz 50 Hz 20 Hz 40 Hz 30 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
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