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Olegator [25]
3 years ago
9

Which statement about an electromagnet is true?

English
2 answers:
PSYCHO15rus [73]3 years ago
8 0

An electromagnet does not function without a source of current.

An electromagnet functions because of the electric current used to generate the magnetic field

<h2>Further Explanation  </h2><h3>Magnet  </h3>
  • A magnet is an object that possess magnetic field and thus attracts certain materials when they are brought near it. Materials attracted by a magnet are known as magnetic materials while those that are not attracted by a magnet are known as no-magnetic materials.
  • A magnet contains two poles that is the North Pole and the South Pole. Magnetic field lines run from the south towards the North Pole.
<h3>Electromagnet </h3>
  • An electromagnet is a type of magnet that is made from electric current. This is done by passing electric current through a solenoid which surrounds a magnetic material such as soft iron.
  • An electromagnet depends on the electric current passed through the material used to make it, such that when the electric current is withdrawn then the magnetism is lost.
  • Additionally, an increase in the amount of electric current increases the strength of the electromagnet and vice versa.
  • Electromagnets are made from coils of electrical wires carrying electric current. A magnetic material such as soft iron is then placed inside the coil, resulting to the creation of magnetic fields with north and south poles.  
  • Electromagnets have a wide variety of uses such as in speakers, motors, generator and other many kinds of electric devices.  

Keywords: Electromagnets, magnets, electric current

<h2>Learn about: </h2>
  1. Magnets: brainly.com/question/12181004
  2. Electromagnet: brainly.com/question/4421491
  3. Uses of electromagnets: brainly.com/question/4421491

Level: High school

Subject: Physics

Topic: Electromagnetism  

fiasKO [112]3 years ago
4 0

The correct answer is 1.

An electromagnet is type of magnet in which a magnetic field is produced by an electric current.

However, the magnetic field disappears when the current is turned off. Therefore, it does not function without a source of current.

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