Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 2.4 AT 240 AT 24 AT 0.24 AT 2.4 AT 240 AT 24 AT 0.24 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Flux density increases Core area increases Flux density decreases Core length increases Flux density increases Core area increases Flux density decreases Core length increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is the unit of magnetic flux density? None of the listed here Tesla Lumens Weber None of the listed here Tesla Lumens Weber ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. rectangular circular None of the listed here triangular rectangular circular None of the listed here triangular ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The commonly used material for shielding or screening magnetism is Soft iron Aluminium Copper Brass Soft iron Aluminium Copper Brass ANSWER DOWNLOAD EXAMIANS APP
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 3 AT 30 AT 300 AT 0.3 AT 3 AT 30 AT 300 AT ANSWER DOWNLOAD EXAMIANS APP
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