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? 0.3 AT 300 AT 3 AT 30 AT 0.3 AT 300 AT 3 AT 30 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage decreases remains unchanged increases reverses polarity decreases remains unchanged increases reverses polarity 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 A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be 2M M/4 M/2 M 2M M/4 M/2 M ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Increases None of the listed here Decreases Remain same Increases None of the listed here Decreases Remain same ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Tesla is a unit of Flux density Field strength Flux Inductance Flux density Field strength Flux Inductance ANSWER DOWNLOAD EXAMIANS APP
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