Electromagnetic induction Increasing the field or increasing the current will decrease the force on the conductor. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self-inductance of the coil may be defined as equal to the e.m.f. induced in volts when the current in the circuit changes at the rate of unit Weber turns. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The polarity of the induced voltage can be determined by using the left-hand generator rule. No Yes No Yes 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 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 ANSWER DOWNLOAD EXAMIANS APP
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 24 mH 12 mH 48 mH 6 mH 24 mH 12 mH 48 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is 18 mH 6 mH 12 mH 36 mH 18 mH 6 mH 12 mH 36 mH ANSWER DOWNLOAD EXAMIANS APP