Magnetism and Electromagnetism The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is proportional to distance between the conductors proportional to 7 inversely proportional to I proportional to X proportional to distance between the conductors proportional to 7 inversely proportional to I proportional to X ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the current through the coil of an electromagnet reverses, the direction of the magnetic field reverses direction of the magnetic field remains unchanged magnetic field collapses magnetic field expands direction of the magnetic field reverses direction of the magnetic field remains unchanged magnetic field collapses magnetic field expands ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Core length increases Flux density decreases Flux density increases Core area increases Core length increases Flux density decreases Flux density increases Core area increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic reluctance of a material Decreases with increasing cross sectional area of material Increases with increasing cross-sec-tional area of material Does not vary with increasing cross-sectional area of material Any of the listed here Decreases with increasing cross sectional area of material Increases with increasing cross-sec-tional area of material Does not vary with increasing cross-sectional area of material Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be 2M M/2 M/4 M 2M M/2 M/4 M ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wire-wound core, an increase in current through the coil Reverses the flux lines Increases the flux density Decreases the flux density Causes no change in flux density Reverses the flux lines Increases the flux density Decreases the flux density Causes no change in flux density ANSWER DOWNLOAD EXAMIANS APP
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