AC Fundamentals, Circuit and Circuit Theory The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? VL and VR VC and VL None of these VC and VR VL and VR VC and VL None of these VC and VR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The frequency of an alternating current is 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 The number of electrons passing through a point in one second The speed with which the alternator runs ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The ratio of active power to apparent power is known as factor. Demand Power Form Load Demand Power Form Load ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Skin effect occurs when a conductor carries current at _________ frequencies. High Low Very low Medium High Low Very low Medium ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance of coil Increases with the increase in supply frequency Decreases with the increase in supply frequency Is unaffected by the supply frequency Becomes zero with the increase in supply frequency Increases with the increase in supply frequency Decreases with the increase in supply frequency Is unaffected by the supply frequency Becomes zero with the increase in supply frequency 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 Capacitive effect between adjacent coil turns Iron loss in core Increase in temperature Skin effect Capacitive effect between adjacent coil turns Iron loss in core Increase in temperature ANSWER DOWNLOAD EXAMIANS APP
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