Magnetism and Electromagnetism A magnetic field exists around Copper Moving Charges Iron Aluminium Copper Moving Charges Iron Aluminium ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density decreases remains the same increases doubles decreases remains the same increases doubles ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be 24 N 2.4 N 0.24 N 240 N 24 N 2.4 N 0.24 N 240 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit of flux is the same as that of Permanance Pole strength Resistance Reluctance Permanance Pole strength Resistance Reluctance ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The most effective and quickest may of making a magnet from soft iron is by 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 Placing it inside a coil carrying current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Paramagnetic materials have relative permeability equal to that ferromagnetic mate rials slightly more than unity equal to unity slightly less than unity equal to that ferromagnetic mate rials slightly more than unity equal to unity slightly less than unity ANSWER DOWNLOAD EXAMIANS APP
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