Electromagnetic induction A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be 6 mH 48 mH 12 mH 24 mH 6 mH 48 mH 12 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla. The force on the conductor will be nearly 30 N 90 N 120 N 60 N 30 N 90 N 120 N 60 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Lenz's law is a consequence of the law of conservation of Charge Induced e.m.f. Induced current Energy Charge Induced e.m.f. Induced current Energy 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 be 24 mH 48 mH 12 mH 3 mH 24 mH 48 mH 12 mH 3 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will Aid the applied voltage Aid the increasing current Produce current opposite to the increasing current Tend to decrease the amount of current Aid the applied voltage Aid the increasing current Produce current opposite to the increasing current Tend to decrease the amount of current ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be Unaffected Halved Doubled Quadrupled Unaffected Halved Doubled Quadrupled ANSWER DOWNLOAD EXAMIANS APP
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