Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage increases remains unchanged reverses polarity decreases increases remains unchanged reverses polarity decreases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it has high specific gravity it has low permeability it corrodes easily it has high permeability it has high specific gravity it has low permeability it corrodes easily it has high permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The force between two long parallel conductors is inversely proportional to Current in one conductor Radius of conductor Distance between the conductors Product of current in two conductors Current in one conductor Radius of conductor Distance between the conductors Product of current in two conductors ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 240 At 2.4 At 24 At 2,400 At 240 At 2.4 At 24 At 2,400 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Flux density increases Core length increases Flux density decreases Core area increases Flux density increases Core length increases Flux density decreases Core area increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic reluctance of a material Does not vary with increasing cross-sectional area of material Any of the listed here Increases with increasing cross-sec-tional area of material Decreases with increasing cross sectional area of material Does not vary with increasing cross-sectional area of material Any of the listed here Increases with increasing cross-sec-tional area of material Decreases with increasing cross sectional area of material ANSWER DOWNLOAD EXAMIANS APP
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