Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Copper Aluminium Nickel Tungsten Copper Aluminium Nickel Tungsten ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage reaches zero decreases remains constant increases reaches zero decreases remains constant increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A magnetic field exists around Aluminium Iron Copper Moving Charges Aluminium Iron Copper Moving Charges 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? 3 AT 30 AT 300 AT 0.3 AT 3 AT 30 AT 300 AT 0.3 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Susceptibility is positive for ferromagnetic substances None of these diamagnetic substances non-magnetic substances ferromagnetic substances None of these diamagnetic substances non-magnetic substances ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the current through the coil of an electromagnet reverses, the magnetic field collapses direction of the magnetic field remains unchanged magnetic field expands direction of the magnetic field reverses magnetic field collapses direction of the magnetic field remains unchanged magnetic field expands direction of the magnetic field reverses ANSWER DOWNLOAD EXAMIANS APP
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