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 38 mH 36 mH 48 mH 30 mH 38 mH 36 mH 48 mH 30 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The magnitude of the induced e.m.f. in a conductor depends on the Amount of flux cut Amount of flux linkages Rate of change of flux-linkages Flux density of the magnetic field Amount of flux cut Amount of flux linkages Rate of change of flux-linkages Flux density of the magnetic field 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 0.5 2.0 1.0 2.5 0.5 2.0 1.0 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 Quadrupled Unaffected Halved Doubled Quadrupled Unaffected Halved Doubled ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The inductance of a coil will increase under all the following conditions except When more area for each turn is provided When the number of turns of the coil increase When more length for the same number of turns is provided When permeability of the core increases When more area for each turn is provided When the number of turns of the coil increase When more length for the same number of turns is provided When permeability of the core increases 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. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
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