Magnetism and Electromagnetism The materials having low retentivity are suitable for making Permanent magnet None of the listed here Temporary Magnet Weak magnet Permanent magnet None of the listed here Temporary Magnet Weak magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage reaches zero remains constant decreases increases reaches zero remains constant decreases increases 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 10 AT 4 AT 8 AT 16 AT 10 AT 4 AT 8 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In the left hand rule, forefinger always represents Voltage magnetic field direction of force on the conductor current Voltage magnetic field direction of force on the conductor current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Core of an electromagnet should have High susceptibility Low coercivity Both low coercivity and high susceptibility None of the listed here High susceptibility Low coercivity Both low coercivity and high susceptibility None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What will be the current passing through the ring shaped air cored coil when number of turns is 800 and ampere turns are 3200? 8 4 6 12 8 4 6 12 ANSWER DOWNLOAD EXAMIANS APP
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