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 150 At 200 At 100 At 300 At 150 At 200 At 100 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic reluctance of a 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 Does not vary with increasing cross-sectional area of material Increases with increasing cross-sec-tional area of material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Temporary magnets are used in Loud speakers Generators All of the listed here Motors Loud speakers Generators All of the listed here Motors ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetism left in the iron after exciting field has been removed is known as reluctance permeance susceptance residual magnetism reluctance permeance susceptance residual magnetism ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The Biotsavart's law is a general modification of Ampere's law Kirchhoff's law Lenz's law Faraday's laws Ampere's law Kirchhoff's law Lenz's law Faraday's laws ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is proportional to distance between the conductors inversely proportional to I proportional to X proportional to 7 proportional to distance between the conductors inversely proportional to I proportional to X proportional to 7 ANSWER DOWNLOAD EXAMIANS APP
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