Magnetism and Electromagnetism The direction of a magnetic field within a magnet is from north to south back to front from south to north front to back from north to south back to front from south to north front to back ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permanent magnet Attracts some substances and repels others Attracts ferromagnetic substances and repels all others Attracts only ferromagnetic substances Attracts all paramagnetic substances and repels others Attracts some substances and repels others Attracts ferromagnetic substances and repels all others Attracts only ferromagnetic substances Attracts all paramagnetic substances and repels others ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnitude and the direction of force per 1.1m length of a pair of conductors of a direct current linecarrying 10 amperes and spaced 100 mm apart ? 22 x 10"8 N 22 x 10-6 N 22 x 10"7 N 22 x 10"5 N 22 x 10"8 N 22 x 10-6 N 22 x 10"7 N 22 x 10"5 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A keeper is used to Amplify flux Restore lost flux Provide a closed path for flux Change the direction of magnetic lines Amplify flux Restore lost flux Provide a closed path for flux Change the direction of magnetic lines 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 decreases doubles remains the same increases decreases doubles remains the same increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Degaussing is the process of Removal of magnetic impurities Removing gases from the materials Remagnetising metallic parts Demagnetising metallic parts Removal of magnetic impurities Removing gases from the materials Remagnetising metallic parts Demagnetising metallic parts ANSWER DOWNLOAD EXAMIANS APP
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