Electromagnetic induction Which of the following inductor will have the least eddy current losses? Laminated iron core Iron core Air core Powdered iron core Laminated iron core Iron core Air core Powdered iron core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Find the force acting on a conductor 3m long carrying a current of 50 amperes at right angles to a magnetic field having a flux density of 0.67 tesla 1000 N 100 N 400 N 300 N 1000 N 100 N 400 N 300 N 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 Halved Unaffected Quadrupled Doubled Halved Unaffected Quadrupled Doubled ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be 25 V 10 V 15 V 12 V 25 V 10 V 15 V 12 V ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will Produce current opposite to the increasing current Aid the applied voltage Aid the increasing current Tend to decrease the amount of current Produce current opposite to the increasing current Aid the applied voltage Aid the increasing current Tend to decrease the amount of current ANSWER DOWNLOAD EXAMIANS APP
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