Magnetism and Electromagnetism Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. circular None of the listed here triangular rectangular circular None of the listed here triangular rectangular ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing current supply Increasing the cross-sectional area All of the listed here Increasing the number of turns Increasing current supply Increasing the cross-sectional area All of the listed here Increasing the number of turns ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Main causes of noisy solenoid are uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts None of these Both of the listed here strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts None of these Both of the listed here strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The commonly used material for shielding or screening magnetism is Brass Aluminium Copper Soft iron Brass Aluminium Copper Soft iron ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Flux density increases Flux density decreases Core area increases Core length increases Flux density increases Flux density decreases Core area increases Core length increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The initial permeability of an iron rod is The permeability almost in non-magnetised state The highest permeability of the iron rod The lowest permeability of the iron rod The permeability at the end of the iron rod The permeability almost in non-magnetised state The highest permeability of the iron rod The lowest permeability of the iron rod The permeability at the end of the iron rod ANSWER DOWNLOAD EXAMIANS APP
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