Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Core area increases Flux density increases Core length increases Flux density decreases Core area increases Flux density increases Core length increases Flux density decreases 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 0.3 AT 30 AT 3 AT 300 AT 0.3 AT 30 AT 3 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage reverses polarity decreases increases remains unchanged reverses polarity decreases increases remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Unit for quantity of electricity is Joule Ampere Ampere-hour Coulomb Joule Ampere Ampere-hour Coulomb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Susceptibility is positive for non-magnetic substances diamagnetic substances None of these ferromagnetic substances non-magnetic substances diamagnetic substances None of these ferromagnetic substances ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The Biotsavart's law is a general modification of Faraday's laws Kirchhoff's law Lenz's law Ampere's law Faraday's laws Kirchhoff's law Lenz's law Ampere's law ANSWER DOWNLOAD EXAMIANS APP
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