Magnetism and Electromagnetism The relative permeability is less than unity is case of Paramagnetic material Ferrits Ferromagnetic material Diamagnetic material Paramagnetic material Ferrits Ferromagnetic material Diamagnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a stationary conductor in a stationary magnetic field is increased reversed in polarity decreased zero increased reversed in polarity decreased zero 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? 300 At 100 At 200 At 150 At 300 At 100 At 200 At 150 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the current through the coil of an electromagnet reverses, the direction of the magnetic field remains unchanged magnetic field expands direction of the magnetic field reverses magnetic field collapses direction of the magnetic field remains unchanged magnetic field expands direction of the magnetic field reverses magnetic field collapses ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The Biotsavart's law is a general modification of Kirchhoff's law Faraday's laws Lenz's law Ampere's law Kirchhoff's law Faraday's laws Lenz's law Ampere's law 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? 14,400 At/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 ANSWER DOWNLOAD EXAMIANS APP
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