Magnetism and Electromagnetism The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is 16 mA 12 mA 120 mA 1.7 mA 16 mA 12 mA 120 mA 1.7 mA ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials are a bit inferior conductors of magnetic flux than air. None of the listed here Diamagnetic Ferromagnetic Dielectric None of the listed here Diamagnetic Ferromagnetic Dielectric 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 Remain Constant Be excessive Increase Decrease Remain Constant Be excessive Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The change of cross-sectional area of conductor in magnetic field will affect reluctance of conductor both of the listed here resistance of conductor None of these reluctance of conductor both of the listed here resistance of conductor None of these 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? 24 At 240 At 2,400 At 2.4 At 24 At 240 At 2,400 At 2.4 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability of materials is not constant. Ferromagnetic None of the listed here Paramagnetic Diamagnetic Ferromagnetic None of the listed here Paramagnetic Diamagnetic ANSWER DOWNLOAD EXAMIANS APP
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