Magnetism and Electromagnetism What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it? 30 At 18.75 At 187 At 300 At 30 At 18.75 At 187 At 300 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The stray line of magnetic flux is defined as A line of magnetic flux which does not follow the designed path The mean length of a ring shaped coil A line vertical to the flux lines A line of magnetic flux in a non-uniform field A line of magnetic flux which does not follow the designed path The mean length of a ring shaped coil A line vertical to the flux lines A line of magnetic flux in a non-uniform field ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Materials subjected to rapid reversal of magnetism should have High co-ercivity and high retentivity Large area of B-H loop High co-ercivity and low density High permeability and low hysteresis loss High co-ercivity and high retentivity Large area of B-H loop High co-ercivity and low density High permeability and low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When an iron piece is placed in a magnetic field the magnetic field will not be affected the magnetic lines of force will bend away from their usual paths in order to pass through the piece the magnetic lines of force will bend away from their usual paths in order to go away from the piece the iron piece will break the magnetic field will not be affected the magnetic lines of force will bend away from their usual paths in order to pass through the piece the magnetic lines of force will bend away from their usual paths in order to go away from the piece the iron piece will break ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one which is a bad conductor which is a good conductor through which the magnetic lines of force can pass very easily which is a strong magnet which is a bad conductor which is a good conductor through which the magnetic lines of force can pass very easily which is a strong magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The force between two long parallel conductors is inversely proportional to Product of current in two conductors Current in one conductor Radius of conductor Distance between the conductors Product of current in two conductors Current in one conductor Radius of conductor Distance between the conductors ANSWER DOWNLOAD EXAMIANS APP
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