Electromagnetic induction Which of the following circuit element stores energy in the electromagnetic field? Inductance Condenser Resistance Variable resistor Inductance Condenser Resistance Variable resistor 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 In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be 2.5 2.0 0.5 1.0 2.5 2.0 0.5 1.0 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 36 mH 30 mH 38 mH 48 mH 36 mH 30 mH 38 mH 48 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Mutually inductance between two magnetically coupled coils depends on Cross-sectional area of their common core The number of their turns Permeability of the core All of the listed here Cross-sectional area of their common core The number of their turns Permeability of the core All of the listed here 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 28 mH 12 mH 3 mH 24 mH 28 mH 12 mH 3 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
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