Magnetism and Electromagnetism The main constituent of permalloy is Cobalt Nickel Chromium Tungsten Cobalt Nickel Chromium Tungsten ANSWER DOWNLOAD EXAMIANS APP
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 120 mA 1.7 mA 12 mA 16 mA 120 mA 1.7 mA 12 mA 16 mA 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? 2,400 At 2.4 At 24 At 240 At 2,400 At 2.4 At 24 At 240 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Tesla is a unit of Flux Inductance Field strength Flux density Flux Inductance Field strength Flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing the cross-sectional area All of the listed here Increasing the number of turns Increasing current supply Increasing the cross-sectional area All of the listed here Increasing the number of turns Increasing current supply ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle will depend on the radius of the circle will be infinite will be zero will depend on the amount of e.m.f. applied will depend on the radius of the circle will be infinite will be zero will depend on the amount of e.m.f. applied ANSWER DOWNLOAD EXAMIANS APP
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