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 1,000 V 2,000 V 3,125 V 31.25 V 1,000 V 2,000 V 3,125 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Degaussing is the process of Removal of magnetic impurities Remagnetising metallic parts Demagnetising metallic parts Removing gases from the materials Removal of magnetic impurities Remagnetising metallic parts Demagnetising metallic parts Removing gases from the materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The main constituent of permalloy is Tungsten Cobalt Nickel Chromium Tungsten Cobalt Nickel Chromium ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength? 0.25 AT/m 25 AT/m 250 AT/m 2500 AT/m 0.25 AT/m 25 AT/m 250 AT/m 2500 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is inversely proportional to I proportional to distance between the conductors proportional to 7 proportional to X inversely proportional to I proportional to distance between the conductors proportional to 7 proportional to X ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 300 AT 30 AT 0.3 AT 3 AT 300 AT 30 AT 0.3 AT 3 AT ANSWER DOWNLOAD EXAMIANS APP
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