Magnetism and Electromagnetism A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)? 360 90 180 270 360 90 180 270 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is expected to have the maximum permeability ? Zinc Copper Ebolite Brass Zinc Copper Ebolite Brass ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are a sub-group of Paramagnetic material Ferri-magnetic material Ferro magnetic material Non-magnetic materials Paramagnetic material Ferri-magnetic material Ferro magnetic material Non-magnetic materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is 12 mA 120 mA 16 mA 1.7 mA 12 mA 120 mA 16 mA 1.7 mA ANSWER DOWNLOAD EXAMIANS APP
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 3,125 V 31.25 V 2,000 V 1,000 V 3,125 V 31.25 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Main causes of noisy solenoid are uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force None of these Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force None of these Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
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