Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage decreases increases reaches zero remains constant decreases increases reaches zero remains constant ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ability of a material to remain magnetized after removal of the magnetizing force is known as hysteresis permeability retentivity reluctance hysteresis permeability retentivity reluctance 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? 3 AT 30 AT 300 AT 0.3 AT 3 AT 30 AT 300 AT 0.3 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for reluctance is At/Wb At/m Wb tesla At/Wb At/m Wb tesla ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb? 90,000 At/Wb 1,440 At/Wb 9,000 At/Wb 14,400 At/Wb 90,000 At/Wb 1,440 At/Wb 9,000 At/Wb 14,400 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 2,400 At 240 At 24 At 2.4 At 2,400 At 240 At 24 At 2.4 At ANSWER DOWNLOAD EXAMIANS APP
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