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? 200 At 100 At 150 At 300 At 200 At 100 At 150 At 300 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Nickel Aluminium Tungsten Copper Nickel Aluminium Tungsten Copper ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Unit for quantity of electricity is Ampere-hour Ampere Joule Coulomb Ampere-hour Ampere Joule Coulomb 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 7 proportional to X inversely proportional to I proportional to distance between the conductors proportional to 7 proportional to X inversely proportional to I proportional to distance between the conductors ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permanent magnet Attracts only ferromagnetic substances Attracts all paramagnetic substances and repels others Attracts ferromagnetic substances and repels all others Attracts some substances and repels others Attracts only ferromagnetic substances Attracts all paramagnetic substances and repels others Attracts ferromagnetic substances and repels all others Attracts some substances and repels others ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Core of an electromagnet should have Low coercivity High susceptibility None of the listed here Both low coercivity and high susceptibility Low coercivity High susceptibility None of the listed here Both low coercivity and high susceptibility ANSWER DOWNLOAD EXAMIANS APP
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