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 3 AT 0.3 AT 30 AT 300 AT 3 AT 0.3 AT 30 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength? 0.25 AT/m 25 AT/m 2500 AT/m 250 AT/m 0.25 AT/m 25 AT/m 2500 AT/m 250 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 0.24 AT 24 AT 240 AT 2.4 AT 0.24 AT 24 AT 240 AT 2.4 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Unit for quantity of electricity is Ampere-hour Joule Ampere Coulomb Ampere-hour Joule Ampere Coulomb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. Soft iron Hardened steel Stainless steel None of the listed here Soft iron Hardened steel Stainless steel None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon Resistance of the coil Pole strength of the magnet Number of turns of the coil Motion of the magnet Resistance of the coil Pole strength of the magnet Number of turns of the coil Motion of the magnet ANSWER DOWNLOAD EXAMIANS APP
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