AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit takes power from the A.C. line when Both applied voltage and current increase Applied voltage decreases but current increases Both applied voltage and current decrease Applied voltage increases but current decreases Both applied voltage and current increase Applied voltage decreases but current increases Both applied voltage and current decrease Applied voltage increases but current decreases ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Imax the r.m.s. value is 0.707 1.414 Imax 0.9 0.5 Imax 0.707 1.414 Imax 0.9 0.5 Imax ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following waves has the highest value of peak factor ? Square wave Sine wave Half wave rectified sine wave Triangular wave Square wave Sine wave Half wave rectified sine wave Triangular wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to all of these R/Z Cosine of phase angle difference between current and voltage Ratio of useful current to total current Iw/I all of these R/Z Cosine of phase angle difference between current and voltage Ratio of useful current to total current Iw/I ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In the case of an unsymmetrical alternating current the average value must always be taken over The half cycle The whole cycle The quarter cycle Unsymmetrical part of the wave form The half cycle The whole cycle The quarter cycle Unsymmetrical part of the wave form ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of an inductive circuit Increases with the increase of inductance and the increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with decrease of inductance and increase of resistance Increases with increase of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with decrease of inductance and increase of resistance Increases with increase of inductance and decrease of resistance ANSWER DOWNLOAD EXAMIANS APP
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