AC Fundamentals, Circuit and Circuit Theory The frequency of an alternating current is The speed with which the alternator runs The number of electrons passing through a point in one second The number of cycles generated in one minute The number of waves passing through a point in one second The speed with which the alternator runs The number of electrons passing through a point in one second The number of cycles generated in one minute The number of waves passing through a point in one second 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 Increase in temperature Iron loss in core Skin effect Capacitive effect between adjacent coil turns Increase in temperature Iron loss in core Skin effect Capacitive effect between adjacent coil turns ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to Peak voltage Average voltage R.m.s. voltage None of the listed here Peak voltage Average voltage R.m.s. voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of the following circuit will be unity None of the listed here Capacitance Resistance Inductance None of the listed here Capacitance Resistance Inductance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to The big size of the inductor The current flowing in the inductor The statement given is false The reactance of the inductor The big size of the inductor The current flowing in the inductor The statement given is false The reactance of the inductor 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 Apparent power Active power None of the listed here Reactive power Apparent power Active power ANSWER DOWNLOAD EXAMIANS APP
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