Electromagnetic induction Air-core coils are practically free from Both Hysteresis losses & Eddy current losses Hysteresis losses None of the listed here Eddy current losses Both Hysteresis losses & Eddy current losses Hysteresis losses None of the listed here Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Lenz's law is a consequence of the law of conservation of Energy Charge Induced current Induced e.m.f. Energy Charge Induced current Induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as Mutual inductance Capacitance Series aiding inductance Self-inductance Mutual inductance Capacitance Series aiding inductance Self-inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following circuit elements will oppose the change in circuit current? Capacitance Inductance Resistance All of the listed here Capacitance Inductance Resistance All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the fpllowing inductor will have the least eddy current losses ? Air core Iron core Powdered iron core Laminated iron core Air core Iron core Powdered iron core Laminated iron core 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 3 mH 28 mH 24 mH 12 mH 3 mH 28 mH ANSWER DOWNLOAD EXAMIANS APP
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