Magnetism and Electromagnetism The stray line of magnetic flux is defined as A line of magnetic flux which does not follow the designed path A line vertical to the flux lines A line of magnetic flux in a non-uniform field The mean length of a ring shaped coil A line of magnetic flux which does not follow the designed path A line vertical to the flux lines A line of magnetic flux in a non-uniform field The mean length of a ring shaped coil ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are a sub-group of Non-magnetic materials Ferro magnetic material Paramagnetic material Ferri-magnetic material Non-magnetic materials Ferro magnetic material Paramagnetic material Ferri-magnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 24 At 240 At 2,400 At 2.4 At 24 At 240 At 2,400 At 2.4 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Paramagnetic materials have relative permeability slightly more than unity slightly less than unity equal to unity equal to that ferromagnetic mate rials slightly more than unity slightly less than unity equal to unity equal to that ferromagnetic mate rials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it has high specific gravity it has high permeability it has low permeability it corrodes easily it has high specific gravity it has high permeability it has low permeability it corrodes easily ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wire-wound core, an increase in current through the coil Increases the flux density Causes no change in flux density Decreases the flux density Reverses the flux lines Increases the flux density Causes no change in flux density Decreases the flux density Reverses the flux lines ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS