Magnetism and Electromagnetism The magnetic reluctance of a material Does not vary with increasing cross-sectional area of material Increases with increasing cross-sec-tional area of material Any of the listed here Decreases with increasing cross sectional area of material Does not vary with increasing cross-sectional area of material Increases with increasing cross-sec-tional area of material Any of the listed here Decreases with increasing cross sectional area of material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The initial permeability of an iron rod is The permeability almost in non-magnetised state The permeability at the end of the iron rod The lowest permeability of the iron rod The highest permeability of the iron rod The permeability almost in non-magnetised state The permeability at the end of the iron rod The lowest permeability of the iron rod The highest permeability of the iron rod ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be M M/4 2M M/2 M M/4 2M M/2 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Materials subjected to rapid reversal of magnetism should have Large area of B-H loop High co-ercivity and low density High co-ercivity and high retentivity High permeability and low hysteresis loss Large area of B-H loop High co-ercivity and low density High co-ercivity and high retentivity High permeability and low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The commonly used material for shielding or screening magnetism is Brass Copper Soft iron Aluminium Brass Copper Soft iron Aluminium ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Tungsten Aluminium Copper Nickel Tungsten Aluminium Copper Nickel ANSWER DOWNLOAD EXAMIANS APP
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