Magnetism and Electromagnetism The unit of flux is the same as that of Permanance Pole strength Resistance Reluctance Permanance Pole strength Resistance Reluctance ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)? 180 360 270 90 180 360 270 90 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? 11 At/Wb 1111 At/Wb 111 At/Wb 1 At/Wb 11 At/Wb 1111 At/Wb 111 At/Wb 1 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Core area increases Flux density decreases Flux density increases Core length increases Core area increases Flux density decreases Flux density increases Core length increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetism left in the iron after exciting field has been removed is known as permeance susceptance reluctance residual magnetism permeance susceptance reluctance residual magnetism 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? 100 At 300 At 200 At 150 At 100 At 300 At 200 At 150 At ANSWER DOWNLOAD EXAMIANS APP
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