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 Lenz's law is a consequence of the law of conservation of Induced e.m.f. Energy Charge Induced current Induced e.m.f. Energy Charge Induced current ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction For a purely inductive circuit which of the following is true? 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 Apparent power is zero Actual power of the circuit is zero Any capacitance even if present in the circuit will not be charged ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will 28 mH 12 mH 24 mH 3 mH 28 mH 12 mH 24 mH 3 mH 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 350 mH 3500 mH None of the listed here 250 mH 350 mH 3500 mH None of the listed here 250 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A moving magnetic field will produce the same effect as a conductor that is moving. False True False True ANSWER DOWNLOAD EXAMIANS APP
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