Electromagnetic induction The inductance of a coil will increase under all the following conditions except When more area for each turn is provided When more length for the same number of turns is provided When permeability of the core increases When the number of turns of the coil increase When more area for each turn is provided When more length for the same number of turns is provided When permeability of the core increases When the number of turns of the coil increase ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be 2.5 2.0 1.0 0.5 2.5 2.0 1.0 0.5 ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will Aid the applied voltage Produce current opposite to the increasing current Tend to decrease the amount of current Aid the increasing current Aid the applied voltage Produce current opposite to the increasing current Tend to decrease the amount of current Aid the increasing current 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 24 mH 12 mH 28 mH 3 mH 24 mH 12 mH 28 mH 3 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction For a purely inductive circuit which of the following is true? 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 Apparent power is zero ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following is unit of inductance? Ampere turns Weber/metre Ohm Hennry Ampere turns Weber/metre Ohm Hennry ANSWER DOWNLOAD EXAMIANS APP
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