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 3 mH 24 mH 12 mH 28 mH 3 mH 24 mH 12 mH 28 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A moving magnetic field will produce the same effect as a conductor that is moving. True False True False 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 10 H 6 H 9 H 12 H 10 H 6 H 9 H 12 H 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 As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it Moves parallel to the direction of the magnetic field Lies in a magnetic field Cuts magnetic flux Lies perpendicular to the magnetic flux Moves parallel to the direction of the magnetic field Lies in a magnetic field Cuts magnetic flux Lies perpendicular to the magnetic flux 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 12 A/s 4 A/s 20 A/s 16 A/s 12 A/s 4 A/s 20 A/s ANSWER DOWNLOAD EXAMIANS APP
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