AC Fundamentals, Circuit and Circuit Theory The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of Capacitive effect between adjacent coil turns Increase in temperature Skin effect Iron loss in core Capacitive effect between adjacent coil turns Increase in temperature Skin effect Iron loss in core ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following waves has the highest value of peak factor ? 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 Capacitors for power factor correction are rated in kW kVA kVAR kV kW kVA kVAR kV ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The form factor is the ratio of Peak value to r.m.s. value r.m.s. value to average value Average value to r.m.s. value None of these Peak value to r.m.s. value r.m.s. value to average value Average value to r.m.s. value None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a series resonant circuit, the impedance of the circuit is Maximum Zero Minimum None of these Maximum Zero Minimum None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of an inductive circuit Increases with decrease of inductance and increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with increase of inductance and decrease of resistance Increases with decrease of inductance and increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with increase of inductance and decrease of resistance ANSWER DOWNLOAD EXAMIANS APP
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