Magnetism and Electromagnetism The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is 31.25 V 2,000 V 1,000 V 3,125 V 31.25 V 2,000 V 1,000 V 3,125 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability is less than unity is case of Paramagnetic material Diamagnetic material Ferrits Ferromagnetic material Paramagnetic material Diamagnetic material Ferrits Ferromagnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Gilbert is a unit of electromotive force conductance permittivity magnetomotive force electromotive force conductance permittivity magnetomotive force ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb? 90,000 At/Wb 9,000 At/Wb 1,440 At/Wb 14,400 At/Wb 90,000 At/Wb 9,000 At/Wb 1,440 At/Wb 14,400 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing the number of turns All of the listed here Increasing the cross-sectional area Increasing current supply Increasing the number of turns All of the listed here Increasing the cross-sectional area Increasing current supply ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density increases decreases doubles remains the same increases decreases doubles remains the same ANSWER DOWNLOAD EXAMIANS APP
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