Electromagnetic induction Which circuit element(s) will oppose the change in circuit current? Inductance only Capacitance only Resistance only Inductance and capacitance Inductance only Capacitance only Resistance only Inductance and capacitance 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 3 mH 12 mH 28 mH 24 mH 3 mH 12 mH 28 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self-inductance of the coil may be defined as equal to the e.m.f. induced in volts when the current in the circuit changes at the rate of unit Weber turns. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Increasing the field or increasing the current will decrease the force on the conductor. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
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 6 H 10 H 9 H 12 H 6 H 10 H 9 H 12 H ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following inductor will have the least eddy current losses? Powdered iron core Air core Laminated iron core Iron core Powdered iron core Air core Laminated iron core Iron core ANSWER DOWNLOAD EXAMIANS APP
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