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 300 AT 30 AT 0.3 AT 3 AT 300 AT 30 AT 0.3 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetism of a magnet can be destroyed by All of the listed here Hammering By inductive action of another magnet Heating All of the listed here Hammering By inductive action of another magnet Heating ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The force between two long parallel conductors is inversely proportional to Product of current in two conductors Distance between the conductors Radius of conductor Current in one conductor Product of current in two conductors Distance between the conductors Radius of conductor Current in one conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The commonly used material for shielding or screening magnetism is Copper Soft iron Aluminium Brass Copper Soft iron Aluminium Brass 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
Magnetism and Electromagnetism The Biotsavart's law is a general modification of Faraday's laws Ampere's law Kirchhoff's law Lenz's law Faraday's laws Ampere's law Kirchhoff's law Lenz's law ANSWER DOWNLOAD EXAMIANS APP
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