Magnetism and Electromagnetism A keeper is used to Restore lost flux Provide a closed path for flux Amplify flux Change the direction of magnetic lines Restore lost flux Provide a closed path for flux Amplify flux Change the direction of magnetic lines ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. circular None of the listed here rectangular triangular circular None of the listed here rectangular triangular ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A material which is slightly repelled by a magnetic field is known as conducting material paramagnetic material ferromagnetic material diamagnetic material conducting material paramagnetic material ferromagnetic material diamagnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a stationary conductor in a stationary magnetic field is reversed in polarity zero increased decreased reversed in polarity zero increased decreased ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m? 16 AT 4 AT 10 AT 8 AT 16 AT 4 AT 10 AT 8 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon Pole strength of the magnet Number of turns of the coil Resistance of the coil Motion of the magnet Pole strength of the magnet Number of turns of the coil Resistance of the coil Motion of the magnet ANSWER DOWNLOAD EXAMIANS APP
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