Magnetism and Electromagnetism Tesla is a unit of Field strength Flux density Inductance Flux Field strength Flux density Inductance Flux ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it has high specific gravity it has low permeability it corrodes easily it has high permeability it has high specific gravity it has low permeability it corrodes easily it has high permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil causes no change in flux density increases the flux density reverses the flux lines decreases the flux density causes no change in flux density increases the flux density reverses the flux lines decreases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)? 180 360 90 270 180 360 90 270 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the current through the coil of an electromagnet reverses, the magnetic field collapses direction of the magnetic field reverses direction of the magnetic field remains unchanged magnetic field expands magnetic field collapses direction of the magnetic field reverses direction of the magnetic field remains unchanged magnetic field expands 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 same None of the listed here Decreases Increases Remain same None of the listed here Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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