Magnetism and Electromagnetism A keeper is used to Change the direction of magnetic lines Provide a closed path for flux Amplify flux Restore lost flux Change the direction of magnetic lines Provide a closed path for flux Amplify flux Restore lost flux ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is 1,000 V 31.25 V 3,125 V 2,000 V 1,000 V 31.25 V 3,125 V 2,000 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The change of cross-sectional area of conductor in magnetic field will affect None of these reluctance of conductor resistance of conductor both of the listed here None of these reluctance of conductor resistance of conductor both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 0.24 AT 2.4 AT 24 AT 240 AT 0.24 AT 2.4 AT 24 AT 240 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Degaussing is the process of Demagnetising metallic parts Remagnetising metallic parts Removal of magnetic impurities Removing gases from the materials Demagnetising metallic parts Remagnetising metallic parts Removal of magnetic impurities Removing gases from the materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one 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 which is a bad conductor ANSWER DOWNLOAD EXAMIANS APP
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