Magnetism and Electromagnetism In a simple magnetic field the strength of magnet flux decreases continuously from initial value to final value increases continuously from initial value to final value is constant and has same value in energy part of the magnetic field first increases and then decreases till it becomes zero decreases continuously from initial value to final value increases continuously from initial value to final value is constant and has same value in energy part of the magnetic field first increases and then decreases till it becomes zero 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 A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Increase Be excessive Remain Constant Decrease Increase Be excessive Remain Constant Decrease ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Transformers Electromagnets Non-magnetic substances Permanent magnets Transformers Electromagnets Non-magnetic substances Permanent magnets ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Reciprocal of permeability is conductance Permeability Reluctivity Susceptibility conductance Permeability Reluctivity Susceptibility ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The main constituent of permalloy is Tungsten Cobalt Nickel Chromium Tungsten Cobalt Nickel Chromium ANSWER DOWNLOAD EXAMIANS APP
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