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 Remain Constant Be excessive Increase Decrease Remain Constant Be excessive Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability is less than unity is case of Diamagnetic material Ferrits Paramagnetic material Ferromagnetic material Diamagnetic material Ferrits Paramagnetic material Ferromagnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage decreases reaches zero increases remains constant decreases reaches zero increases remains constant ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a vector quantity? Flux density Magnetic potential Relalative permeability Magnetic field intensity Flux density Magnetic potential Relalative permeability Magnetic field intensity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500 Wb/At × m? 11 At/Wb 111 At/Wb 1111 At/Wb 1 At/Wb 11 At/Wb 111 At/Wb 1111 At/Wb 1 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For which of the following materials the net magnetic moment should be zero? antiferromagnetic materials diamagnetic materials ferrimagnetic materials antiferrimagnetic materials antiferromagnetic materials diamagnetic materials ferrimagnetic materials antiferrimagnetic materials ANSWER DOWNLOAD EXAMIANS APP
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