Electromagnetic induction A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage? 0.5 s 0.2 s None of the listed here 0.1 s 0.5 s 0.2 s None of the listed here 0.1 s ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will 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 Aid the applied voltage Aid the increasing current Produce current opposite to the increasing current 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 60 N 30 N 120 N 90 N 60 N 30 N 120 N 90 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The direction of induced e.m.f. can be found by Kirchhoff s voltage law Lenz's law Laplace's law Fleming's right hand rule Kirchhoff s voltage law Lenz's law Laplace's law Fleming's right hand rule ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Air-core coils are practically free from Eddy current losses None of the listed here Both Hysteresis losses & Eddy current losses Hysteresis losses Eddy current losses None of the listed here Both Hysteresis losses & Eddy current losses Hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The coefficient of coupling between two air core coils depends on None of the listed here Mutual inductance and self inductance of two coils Mutual inductance between two coils only Self-inductance of two coils only None of the listed here Mutual inductance and self inductance of two coils Mutual inductance between two coils only Self-inductance of two coils only ANSWER DOWNLOAD EXAMIANS APP
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