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 400 N 1000 N 300 N 100 N 400 N 1000 N 300 N 100 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 Doubled Quadrupled Halved Unaffected Doubled Quadrupled Halved Unaffected 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 15 V 12 V 10 V 25 V 15 V 12 V 10 V 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 Tend to decrease the amount of current Aid the increasing current Produce current opposite to the increasing current Aid the applied voltage Tend to decrease the amount of current Aid the increasing current Produce current opposite to the increasing current ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two coils have inductances of 8 mH and 18 mH and a coefficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be 30 mH 48 mH 36 mH 38 mH 30 mH 48 mH 36 mH 38 mH ANSWER DOWNLOAD EXAMIANS APP
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