Electromagnetic induction Lenz's law is a consequence of the law of conservation of Induced current Charge Induced e.m.f. Energy Induced current Charge Induced e.m.f. Energy ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Which of the following inductor will have the least eddy current losses? Air core Iron core Laminated iron core Powdered iron core Air core Iron core Laminated iron core Powdered iron core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Reversing the field or the current will reverse the force on the conductor. No Yes No Yes 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 12 mH 18 mH 6 mH 36 mH 12 mH 18 mH 6 mH 36 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage? 0.2 s None of the listed here 0.1 s 0.5 s 0.2 s None of the listed here 0.1 s 0.5 s ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Mutually inductance between two magnetically coupled coils depends on Cross-sectional area of their common core All of the listed here The number of their turns Permeability of the core Cross-sectional area of their common core All of the listed here The number of their turns Permeability of the core ANSWER DOWNLOAD EXAMIANS APP
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