Magnetism and Electromagnetism How does the magnetic compass needle behave in a magnetic field? It starts rotating None of the listed here It assures a position right angle to magnetic field It assures a position which follows a line of magnetic flux It starts rotating None of the listed here It assures a position right angle to magnetic field It assures a position which follows a line of magnetic flux ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetism of a magnet can be destroyed by Hammering All of the listed here By inductive action of another magnet Heating Hammering All of the listed here By inductive action of another magnet Heating ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnitude and the direction of force per 1.1m length of a pair of conductors of a direct current linecarrying 10 amperes and spaced 100 mm apart ? 22 x 10"7 N 22 x 10"5 N 22 x 10"8 N 22 x 10-6 N 22 x 10"7 N 22 x 10"5 N 22 x 10"8 N 22 x 10-6 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Be excessive Remain Constant Decrease Increase Be excessive Remain Constant Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are a sub-group of Ferro magnetic material Non-magnetic materials Paramagnetic material Ferri-magnetic material Ferro magnetic material Non-magnetic materials Paramagnetic material Ferri-magnetic material 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 31.25 V 3,125 V 2,000 V 1,000 V 31.25 V 3,125 V ANSWER DOWNLOAD EXAMIANS APP
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