Magnetism and Electromagnetism Temporary magnets are used in Generators All of the listed here Motors Loud speakers Generators All of the listed here Motors Loud speakers ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current? 240 At 2,400 At 24 At 2.4 At 240 At 2,400 At 24 At 2.4 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing the cross-sectional area Increasing the number of turns All of the listed here Increasing current supply Increasing the cross-sectional area Increasing the number of turns All of the listed here Increasing current supply 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 Decrease Remain Constant Be excessive Increase Decrease Remain Constant Be excessive Increase ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a vector quantity? Magnetic field intensity Magnetic potential Relalative permeability Flux density Magnetic field intensity Magnetic potential Relalative permeability Flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit of relative permeability is None of the listed here Hennry Its dimensionless Hennry/meter None of the listed here Hennry Its dimensionless Hennry/meter ANSWER DOWNLOAD EXAMIANS APP
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