Magnetism and Electromagnetism The bar magnet has Dipole moment None of the listed here Both dipole and monopole moment Monopole moment Dipole moment None of the listed here Both dipole and monopole moment Monopole moment ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Flux density decreases Flux density increases Core area increases Core length increases Flux density decreases Flux density increases Core area increases Core length increases 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 reverses direction of the magnetic field remains unchanged magnetic field expands magnetic field collapses direction of the magnetic field reverses direction of the magnetic field remains unchanged magnetic field expands ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The main constituent of permalloy is Cobalt Nickel Tungsten Chromium Cobalt Nickel Tungsten Chromium ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism How does the magnetic compass needle behave in a magnetic field? It assures a position which follows a line of magnetic flux It starts rotating It assures a position right angle to magnetic field None of the listed here It assures a position which follows a line of magnetic flux It starts rotating It assures a position right angle to magnetic field None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The Biotsavart's law is a general modification of Faraday's laws Kirchhoff's law Ampere's law Lenz's law Faraday's laws Kirchhoff's law Ampere's law Lenz's law ANSWER DOWNLOAD EXAMIANS APP
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