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 28 mH 3 mH 12 mH 24 mH 28 mH 3 mH 12 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Increasing the field or increasing the current will decrease the force on the conductor. No Yes No Yes 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 Lenz Coulomb Newton Faraday Lenz Coulomb Newton Faraday ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is 500 ohms 5000 ohms 1000 ohms 100 ohms 500 ohms 5000 ohms 1000 ohms 100 ohms 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 Which of the following is unit of inductance? Ampere turns Ohm Hennry Weber/metre Ampere turns Ohm Hennry Weber/metre ANSWER DOWNLOAD EXAMIANS APP
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