Magnetism and Electromagnetism Out of the following statements, concerning an electric field, which statement is not true? Unit field intensity in the exertion of a force of one newton on a charge of one coulomb The electric intensity is a vector quantity The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point An electric field is defined as a point in space at which an electric charge would experience a force Unit field intensity in the exertion of a force of one newton on a charge of one coulomb The electric intensity is a vector quantity The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point An electric field is defined as a point in space at which an electric charge would experience a force ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability of materials is not constant. None of the listed here Paramagnetic Ferromagnetic Diamagnetic None of the listed here Paramagnetic Ferromagnetic Diamagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wire-wound core, an increase in current through the coil Causes no change in flux density Reverses the flux lines Decreases the flux density Increases the flux density Causes no change in flux density Reverses the flux lines Decreases the flux density Increases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. rectangular triangular None of the listed here circular rectangular triangular None of the listed here circular ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For which of the following materials the saturation value is the highest? Ferrites Paramagnetic materials Diamagnetic materials Ferromagnetic materials Ferrites Paramagnetic materials Diamagnetic materials Ferromagnetic materials 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? 30 AT 300 AT 3 AT 0.3 AT 30 AT 300 AT 3 AT 0.3 AT ANSWER DOWNLOAD EXAMIANS APP
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