Magnetism and Electromagnetism The unit for reluctance is At/m At/Wb Wb tesla At/m At/Wb Wb tesla ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one 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 which is a bad conductor which is a strong magnet through which the magnetic lines of force can pass very easily ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density remains the same decreases doubles increases remains the same decreases doubles increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Transformers Permanent magnets Electromagnets Non-magnetic substances Transformers Permanent magnets Electromagnets Non-magnetic substances ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 2.4 At 24 At 2,400 At 240 At 2.4 At 24 At 2,400 At 240 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are a sub-group of Paramagnetic material Ferro magnetic material Ferri-magnetic material Non-magnetic materials Paramagnetic material Ferro magnetic material Ferri-magnetic material Non-magnetic materials ANSWER DOWNLOAD EXAMIANS APP
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