Magnetism and Electromagnetism The magnetic materials exhibit the property of magnetisation because of spin of electrons orbital motion of electrons either of these spin of nucleus spin of electrons orbital motion of electrons either of these spin of nucleus ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following materials are diamagnetic? Copper Iron Silver and copper Silver Copper Iron Silver and copper Silver 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? 250 AT/m 25 AT/m 0.25 AT/m 2500 AT/m 250 AT/m 25 AT/m 0.25 AT/m 2500 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. None of the listed here Hardened steel Soft iron Stainless steel None of the listed here Hardened steel Soft iron Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 240 AT 2.4 AT 0.24 AT 24 AT 240 AT 2.4 AT 0.24 AT 24 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetomotive force is The flow of an electric current The passage of magnetic field through an exciting coil The sum of all currents embraced by one line of magnetic field The voltage across the two ends of exciting coil The flow of an electric current The passage of magnetic field through an exciting coil The sum of all currents embraced by one line of magnetic field The voltage across the two ends of exciting coil ANSWER DOWNLOAD EXAMIANS APP
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