Magnetism and Electromagnetism A permeable substance is one which is a strong magnet which is a bad conductor through which the magnetic lines of force can pass very easily which is a good conductor which is a strong magnet which is a bad conductor through which the magnetic lines of force can pass very easily which is a good conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For which of the following materials the net magnetic moment should be zero? ferrimagnetic materials diamagnetic materials antiferromagnetic materials antiferrimagnetic materials ferrimagnetic materials diamagnetic materials antiferromagnetic materials antiferrimagnetic materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 150 At 300 At 200 At 100 At 150 At 300 At 200 At 100 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil? Decreases Remains same First increases and then decreases depending on the depth of iron in¬sertion Increases Decreases Remains same First increases and then decreases depending on the depth of iron in¬sertion Increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When a solenoid is activated, the force that moves the plunger is a permanent magnetic field an electromagnetic field a steady current varying voltage a permanent magnetic field an electromagnetic field a steady current varying voltage ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Degaussing is the process of Demagnetising metallic parts Removal of magnetic impurities Remagnetising metallic parts Removing gases from the materials Demagnetising metallic parts Removal of magnetic impurities Remagnetising metallic parts Removing gases from the materials ANSWER DOWNLOAD EXAMIANS APP
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