Magnetism and Electromagnetism Main causes of noisy solenoid are Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts None of these strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts None of these strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one Which is a bad conductor Which is a strong magnet Through which the magnetic lines of force can pass very easily Which is a good conductor Which is a bad conductor Which is a strong magnet Through which the magnetic lines of force can pass very easily Which is a good conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be 0.24 N 24 N 240 N 2.4 N 0.24 N 24 N 240 N 2.4 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism An electromagnetic field exists only when there is voltage an increasing current decreasing current current voltage an increasing current decreasing current current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Substances which have permeability less than the permeability of free space are known as Paramagnetic material Diamagnetic material Ferro magnetic material Bipolar Paramagnetic material Diamagnetic material Ferro magnetic material Bipolar ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 24 AT 0.24 AT 2.4 AT 240 AT 24 AT 0.24 AT 2.4 AT 240 AT ANSWER DOWNLOAD EXAMIANS APP
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