Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Copper Aluminium Nickel Tungsten Copper Aluminium Nickel Tungsten ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength? 25 AT/m 2500 AT/m 0.25 AT/m 250 AT/m 25 AT/m 2500 AT/m 0.25 AT/m 250 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism An electromagnetic field exists only when there is current voltage an increasing current decreasing current current voltage an increasing current decreasing current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are materials. Ferromagnetic None of the listed here Diamagnetic Paramagnetic Ferromagnetic None of the listed here Diamagnetic Paramagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetism left in the iron after exciting field has been removed is known as susceptance permeance reluctance residual magnetism susceptance permeance reluctance residual magnetism 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 111 At/Wb 11 At/Wb 1111 At/Wb 1 At/Wb 111 At/Wb 11 At/Wb ANSWER DOWNLOAD EXAMIANS APP
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