Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 240 AT 2.4 AT 24 AT 0.24 AT 240 AT 2.4 AT 24 AT 0.24 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The most effective and quickest may of making a magnet from soft iron is by Placing it inside a coil carrying current Induction Rubbing with another magnet The use of permanent magnet Placing it inside a coil carrying current Induction Rubbing with another magnet The use of permanent magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil 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 reverses the flux lines increases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The uniform magnetic field is None of the listed here The field in which all lines of magnetic flux are parallel and equidistant The field of a set of parallel conductors The field of a single conductor None of the listed here The field in which all lines of magnetic flux are parallel and equidistant The field of a set of parallel conductors The field of a single conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Susceptibility is positive for diamagnetic substances ferromagnetic substances None of these non-magnetic substances diamagnetic substances ferromagnetic substances None of these non-magnetic substances ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials having low retentivity are suitable for making Temporary Magnet Weak magnet Permanent magnet None of the listed here Temporary Magnet Weak magnet Permanent magnet None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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