Magnetism and Electromagnetism The most effective and quickest may of making a magnet from soft iron is by Placing it inside a coil carrying current Rubbing with another magnet The use of permanent magnet Induction Placing it inside a coil carrying current Rubbing with another magnet The use of permanent magnet Induction ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials having low retentivity are suitable for making Temporary Magnet Permanent magnet None of the listed here Weak magnet Temporary Magnet Permanent magnet None of the listed here Weak magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a stationary conductor in a stationary magnetic field is decreased zero increased reversed in polarity decreased zero increased reversed in polarity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The left hand rule correlates to Magnetic field, electric field and direction of force on a conductor Current, induced e.m.f. and direction of force on a conductor Current, magnetic field and direction of force on a conductor Self induction, mutual induction and direction of force on a conductor Magnetic field, electric field and direction of force on a conductor Current, induced e.m.f. and direction of force on a conductor Current, magnetic field and direction of force on a conductor Self induction, mutual induction and direction of force on a conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb? 90,000 At/Wb 14,400 At/Wb 1,440 At/Wb 9,000 At/Wb 90,000 At/Wb 14,400 At/Wb 1,440 At/Wb 9,000 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Substances which have permeability less than the permeability of free space are known as Bipolar Diamagnetic material Ferro magnetic material Paramagnetic material Bipolar Diamagnetic material Ferro magnetic material Paramagnetic material ANSWER DOWNLOAD EXAMIANS APP
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