AC Fundamentals, Circuit and Circuit Theory The period of a sine wave is ___________ seconds. Its frequency is 40 Hz 50 Hz 20 Hz 30 Hz 40 Hz 50 Hz 20 Hz 30 Hz ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory When an alternating current passes through an ohmic resistance the electrical power converted into heat is None of the listed here Reactive power Active power Apparent power None of the listed here Reactive power Active power Apparent power 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 0.707 of peak value Same as peak value Zero 0.5 of peak value 0.707 of peak value Same as peak value Zero 0.5 of peak value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A parallel AC. circuit in resonance will Have a high impedance Act like a resistor of low value Have current in each section equal to the line current Have a high voltage developed across each inductive and capacitive section Have a high impedance Act like a resistor of low value Have current in each section equal to the line current Have a high voltage developed across each inductive and capacitive section ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a loss-free R-L-C circuit the transient current is Square wave Sinusoidal Oscillating Non-oscillating Square wave Sinusoidal Oscillating Non-oscillating ANSWER DOWNLOAD EXAMIANS APP
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