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 10 H 9 H 6 H 12 H 10 H 9 H 6 H 12 H ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be 16 A/s 20 A/s 4 A/s 12 A/s 16 A/s 20 A/s 4 A/s 12 A/s ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The law that the induced e.m.f. and current always oppose the cause producing them is due to Faraday Coulomb Newton Lenz Faraday Coulomb Newton Lenz ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Air-core coils are practically free from Eddy current losses Both Hysteresis losses & Eddy current losses None of the listed here Hysteresis losses Eddy current losses Both Hysteresis losses & Eddy current losses None of the listed here Hysteresis losses 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 A crack in the magnetic path of an inductor will result in Increased inductance Unchanged inductance Reduced inductance Zero inductance Increased inductance Unchanged inductance Reduced inductance Zero inductance ANSWER DOWNLOAD EXAMIANS APP
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