Magnetism and Electromagnetism Magnetism of a magnet can be destroyed by By inductive action of another magnet All of the listed here Hammering Heating By inductive action of another magnet All of the listed here Hammering Heating ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism An electromagnetic field exists only when there is decreasing current an increasing current voltage current decreasing current an increasing current voltage current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be 2M M/2 M M/4 2M M/2 M M/4 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wire-wound 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 What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 100 At 150 At 300 At 200 At 100 At 150 At 300 At 200 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The main constituent of permalloy is Chromium Tungsten Cobalt Nickel Chromium Tungsten Cobalt Nickel ANSWER DOWNLOAD EXAMIANS APP
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