Electromagnetic induction A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by Variation in coil current Change of number of turns of coil Variation in voltage to the coil The resistance of magnetic path Variation in coil current Change of number of turns of coil Variation in voltage to the coil The resistance of magnetic path ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which circuit element(s) will oppose the change in circuit current? Capacitance only Inductance only Inductance and capacitance Resistance only Capacitance only Inductance only Inductance and capacitance Resistance only ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction An open coil has Infinite resistance and normal inductance Zero resistance and high inductance Infinite resistance and zero inductance Zero resistance and inductance Infinite resistance and normal inductance Zero resistance and high inductance Infinite resistance and zero inductance Zero resistance and inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will Decreases None of the listed here Remains same Increases Decreases None of the listed here Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Air-core coils are practically free from None of the listed here Hysteresis losses Eddy current losses Both Hysteresis losses & Eddy current losses None of the listed here Hysteresis losses Eddy current losses Both Hysteresis losses & Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction For a purely inductive circuit which of the following is true? Apparent power is zero Actual power of the circuit is zero Relative power is zero Any capacitance even if present in the circuit will not be charged Apparent power is zero Actual power of the circuit is zero Relative power is zero Any capacitance even if present in the circuit will not be charged ANSWER DOWNLOAD EXAMIANS APP
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