State any two advantages of electromagnets over permanent magnets.
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The main advantage of anelectromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling theamount of electric current in thewinding. However, unlike a permanent magnet that needs no power, anelectromagnet requires a continuous supply of current to maintain the magnetic field.
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The main advantage of an
electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.Although an electromagnet is more complicated than a permanent magnet, it has useful and important advantages. Control of Magnet Strength. One of the most important features of an electromagnet is the ability to change its magnetic force. Greater Magnet Power.
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electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.Although an electromagnet is more complicated than a permanent magnet, it has useful and important advantages. Control of Magnet Strength. One of the most important features of an electromagnet is the ability to change its magnetic force. Greater Magnet Power.
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