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The following magnet is used in large machines to create magnetic flux
- a)Permanent magnet
- b)Electro magnet
- c)Temporary magnet
- d)Any of the above
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The following magnet is used in large machines to create magnetic flux...
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole in the center of the coil. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.
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.
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Most Upvoted Answer
The following magnet is used in large machines to create magnetic flux...
Because the attraction bw to opposite magnet is not capable to touch than we used electo magnet
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The following magnet is used in large machines to create magnetic fluxa)Permanent magnetb)Electro magnetc)Temporary magnetd)Any of the aboveCorrect answer is option 'B'. Can you explain this answer?
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