Electromagnetic induction Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be Quadrupled Doubled Halved Unaffected Quadrupled Doubled Halved Unaffected 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 Coulomb Faraday Newton Lenz Coulomb Faraday Newton ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A moving magnetic field will produce the same effect as a conductor that is moving. True False True False 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 be 48 mH 3 mH 24 mH 12 mH 48 mH 3 mH 24 mH 12 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction For a purely inductive circuit which of the following is true? Apparent power is zero Any capacitance even if present in the circuit will not be charged Relative power is zero Actual power of the circuit is zero Apparent power is zero Any capacitance even if present in the circuit will not be charged Relative power is zero Actual power of the circuit is zero ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following circuit element stores energy in the electromagnetic field? Resistance Condenser Inductance Variable resistor Resistance Condenser Inductance Variable resistor ANSWER DOWNLOAD EXAMIANS APP
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