Magnetism and Electromagnetism How does the magnetic compass needle behave in a magnetic field? None of the listed here It assures a position which follows a line of magnetic flux It assures a position right angle to magnetic field It starts rotating None of the listed here It assures a position which follows a line of magnetic flux It assures a position right angle to magnetic field It starts rotating ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From one end of the magnet to another None of the listed here From north pole to south pole From south pole to north pole From one end of the magnet to another None of the listed here From north pole to south pole From south pole to north pole ANSWER DOWNLOAD EXAMIANS APP
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)? 270 180 360 90 270 180 360 90 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? 150 At 300 At 200 At 100 At 150 At 300 At 200 At 100 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of a magnetic field within a magnet is back to front from south to north front to back from north to south back to front from south to north front to back from north to south ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Substances which have permeability less than the permeability of free space are known as Diamagnetic material Ferro magnetic material Paramagnetic material Bipolar Diamagnetic material Ferro magnetic material Paramagnetic material Bipolar ANSWER DOWNLOAD EXAMIANS APP
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