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 2,000 V 1,000 V 31.25 V 3,125 V 2,000 V 1,000 V 31.25 V 3,125 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil reverses the flux lines causes no change in flux density decreases the flux density increases the flux density reverses the flux lines causes no change in flux density decreases the flux density increases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials are a bit inferior conductors of magnetic flux than air. Dielectric Diamagnetic None of the listed here Ferromagnetic Dielectric Diamagnetic None of the listed here Ferromagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. Stainless steel None of the listed here Hardened steel Soft iron Stainless steel None of the listed here Hardened steel Soft iron ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage increases remains unchanged decreases reverses polarity increases remains unchanged decreases reverses polarity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism One telsa is equal to 1 Wb/mm² 1 Wb/m 1 Wb/m² 1 mWb/m² 1 Wb/mm² 1 Wb/m 1 Wb/m² 1 mWb/m² ANSWER DOWNLOAD EXAMIANS APP
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