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 1.0 2.0 0.5 2.5 1.0 2.0 0.5 ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A laminated iron core has reduced eddy-current losses because More wire can be used with less D.C. resistance in coil The laminations are stacked vertically The laminations are insulated from each other The magnetic flux is concentrated in the air gap of the core More wire can be used with less D.C. resistance in coil The laminations are stacked vertically The laminations are insulated from each other The magnetic flux is concentrated in the air gap of the core ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The magnitude of the induced e.m.f. in a conductor depends on the Amount of flux linkages Amount of flux cut Flux density of the magnetic field Rate of change of flux-linkages Amount of flux linkages Amount of flux cut Flux density of the magnetic field Rate of change of flux-linkages ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In case of an inductance, current is proportional to Voltage across the inductance None of the listed here Magnetic field Both of the listed here Voltage across the inductance None of the listed here Magnetic field Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
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 300 N 100 N 400 N 1000 N 300 N 100 N 400 N 1000 N ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two 300 uH coils in series without mutual coupling have a total inductance of 900 uH 1200 uH 300 uH 600 uH 900 uH 1200 uH 300 uH 600 uH ANSWER DOWNLOAD EXAMIANS APP
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