AC Fundamentals, Circuit and Circuit Theory The time constant of the capacitance circuit is defined as the time during which voltage None of these Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value Falls to 36.8% of its final steady value None of these Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value Falls to 36.8% of its final steady value ANSWER DOWNLOAD EXAMIANS APP
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 Skin effect Increase in temperature Iron loss in core Capacitive effect between adjacent coil turns Skin effect Increase in temperature Iron loss in core Capacitive effect between adjacent coil turns ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The square waveform of current has following relation between r.m.s. value and average value. None of these r.m.s. value is equal to average value r.m.s. value of current is greater than average value r.m.s. value of current is less than average value None of these r.m.s. value is equal to average value r.m.s. value of current is greater than average value r.m.s. value of current is less than average value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The frequency of an alternating current is The number of electrons passing through a point in one second The speed with which the alternator runs The number of waves passing through a point in one second The number of cycles generated in one minute The number of electrons passing through a point in one second The speed with which the alternator runs The number of waves passing through a point in one second The number of cycles generated in one minute ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of the following circuit will be zero Capacitance Both of the listed here Inductance Resistance Capacitance Both of the listed here Inductance Resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory At very low frequencies a series R-C circuit behaves as almost purely Resistive None of the listed here Inductive Capacitive Resistive None of the listed here Inductive Capacitive ANSWER DOWNLOAD EXAMIANS APP
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