Magnetism and Electromagnetism Main causes of noisy solenoid are strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts None of these strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts None of these ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetism of a magnet can be destroyed by By inductive action of another magnet Heating Hammering All of the listed here By inductive action of another magnet Heating Hammering All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 300 At 200 At 100 At 150 At 300 At 200 At 100 At 150 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing the number of turns Increasing current supply All of the listed here Increasing the cross-sectional area Increasing the number of turns Increasing current supply All of the listed here Increasing the cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is not a unit of flux? All of the listed here Tesla Maxwell Weber All of the listed here Tesla Maxwell Weber ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500 Wb/At × m? 1111 At/Wb 1 At/Wb 11 At/Wb 111 At/Wb 1111 At/Wb 1 At/Wb 11 At/Wb 111 At/Wb ANSWER DOWNLOAD EXAMIANS APP
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