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)? 90 270 360 180 90 270 360 180 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for reluctance is Wb tesla At/Wb At/m Wb tesla At/Wb At/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Out of the following statements, concerning an electric field, which statement is not true? 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 field intensity at a point is numerically equal to the force exerted upon a charge placed at that point The electric intensity is a vector quantity 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 field intensity at a point is numerically equal to the force exerted upon a charge placed at that point The electric intensity is a vector quantity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil reverses the flux lines causes no change in flux density decreases the flux density increases the flux density reverses the flux lines causes no change in flux density decreases the flux density increases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Tesla is a unit of Inductance Flux Flux density Field strength Inductance Flux Flux density Field strength ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism How does the magnetic compass needle behave in a magnetic field? None of the listed here It assures a position which follows a line of magnetic flux It starts rotating It assures a position right angle to magnetic field None of the listed here It assures a position which follows a line of magnetic flux It starts rotating It assures a position right angle to magnetic field ANSWER DOWNLOAD EXAMIANS APP
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