AC Fundamentals, Circuit and Circuit Theory The period of a sine wave is ___________ seconds. Its frequency is 20 Hz 50 Hz 30 Hz 40 Hz 20 Hz 50 Hz 30 Hz 40 Hz ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Two waves of the same frequency have opposite phase when the phase angle between them is 180° 90° 360° 0° 180° 90° 360° 0° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The ratio of active power to apparent power is known as factor. Form Load Demand Power Form Load Demand Power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For the same peak value which of the following wave will 'have the highest r.m.s. value? Sine wave Triangular wave Square wave Half wave rectified sine wave Sine wave Triangular wave Square wave Half wave rectified sine wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of a capacitive circuit Increases with the decrease of capacitance and increase of resistance Increases with the decrease of capacitance and decrease of resistance Increases with the increase of capacitance and decrease of resistance Increase with increase of capacitance and increase of resistance Increases with the decrease of capacitance and increase of resistance Increases with the decrease of capacitance and decrease of resistance Increases with the increase of capacitance and decrease of resistance Increase with increase of capacitance and increase of resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure resistive circuit Current lags behind the voltage by 90° Current is in phase with the voltage Current can lead or lag the voltage by 90° None of the listed here Current lags behind the voltage by 90° Current is in phase with the voltage Current can lead or lag the voltage by 90° None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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