Magnetism and Electromagnetism Main causes of noisy solenoid are Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force None of these Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force None of these ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A magnetic field exists around Iron Aluminium Moving Charges Copper Iron Aluminium Moving Charges Copper ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Degaussing is the process of Remagnetising metallic parts Removal of magnetic impurities Demagnetising metallic parts Removing gases from the materials Remagnetising metallic parts Removal of magnetic impurities Demagnetising metallic parts Removing gases from the materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In a simple magnetic field the strength of magnet flux decreases continuously from initial value to final value is constant and has same value in energy part of the magnetic field increases continuously from initial value to final value first increases and then decreases till it becomes zero decreases continuously from initial value to final value is constant and has same value in energy part of the magnetic field increases continuously from initial value to final value first increases and then decreases till it becomes zero ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Non-magnetic substances Electromagnets Transformers Permanent magnets Non-magnetic substances Electromagnets Transformers Permanent magnets ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The main constituent of permalloy is Cobalt Nickel Chromium Tungsten Cobalt Nickel Chromium Tungsten ANSWER DOWNLOAD EXAMIANS APP
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