Electromagnetic induction Two coils have self-inductances of 10 H and 2 H, the mutual inductance being zero. If the two coils are connected in series, the total inductance will be 9 H 10 H 6 H 12 H 9 H 10 H 6 H 12 H ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is 36 mH 12 mH 18 mH 6 mH 36 mH 12 mH 18 mH 6 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will Tend to decrease the amount of current Produce current opposite to the increasing current Aid the increasing current Aid the applied voltage Tend to decrease the amount of current Produce current opposite to the increasing current Aid the increasing current Aid the applied voltage 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 Any capacitance even if present in the circuit will not be charged Actual power of the circuit is zero Relative power is zero Apparent power is zero Any capacitance even if present in the circuit will not be charged Actual power of the circuit is zero ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The direction of induced e.m.f. can be found by Kirchhoff s voltage law Lenz's law Fleming's right hand rule Laplace's law Kirchhoff s voltage law Lenz's law Fleming's right hand rule Laplace's law ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is 10 H 5 H 20 H 15 H 10 H 5 H 20 H 15 H ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS