Electromagnetic induction For a purely inductive circuit which of the following is true? Apparent power is zero Actual power of the circuit is zero Any capacitance even if present in the circuit will not be charged Relative power is zero Apparent power is zero Actual power of the circuit is zero Any capacitance even if present in the circuit will not be charged Relative power is zero ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil induces 350 mV when the current changes at the rate of 1 A/s. The value of inductance is None of the listed here 350 mH 3500 mH 250 mH None of the listed here 350 mH 3500 mH 250 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The inductance of a coil will increase under all the following conditions except When more length for the same number of turns is provided When permeability of the core increases When more area for each turn is provided When the number of turns of the coil increase When more length for the same number of turns is provided When permeability of the core increases When more area for each turn is provided When the number of turns of the coil increase ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The law that the induced e.m.f. and current always oppose the cause producing them is due to Lenz Newton Faraday Coulomb Lenz Newton Faraday Coulomb ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The direction of induced e.m.f. can be found by Lenz's law Fleming's right hand rule Kirchhoff s voltage law Laplace's law Lenz's law Fleming's right hand rule Kirchhoff s voltage law Laplace's law ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be 12 V 25 V 15 V 10 V 12 V 25 V 15 V 10 V ANSWER DOWNLOAD EXAMIANS APP
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