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 magnetic flux is concentrated in the air gap of the core The laminations are insulated from each other The laminations are stacked vertically More wire can be used with less D.C. resistance in coil The magnetic flux is concentrated in the air gap of the core The laminations are insulated from each other The laminations are stacked vertically ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Reversing the field or the current will reverse the force on the conductor. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In case of an inductance, current is proportional to None of the listed here Both of the listed here Voltage across the inductance Magnetic field None of the listed here Both of the listed here Voltage across the inductance Magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Increasing the field or increasing the current will decrease the force on the conductor. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will None of the listed here Increases Decreases Remains same None of the listed here Increases Decreases Remains same 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 48 mH 30 mH 38 mH 36 mH 48 mH 30 mH 38 mH 36 mH ANSWER DOWNLOAD EXAMIANS APP
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