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Why is an electromagnet a temporary magnet?

a. An electromagnet cannot be turned on and off.

b. An electromagnet is a magnet when no current flows through the wire. The electromagnet no longer acts as a magnet when current flows through the wire.

c. An electromagnet is only a magnet if a current flows through the wire continuously.

d. An electromagnet becomes a magnet when a current flows through the wire. An electromagnet no longer acts as a magnet when the current flow stops.

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unicorns32

The answer is

d. An electromagnet becomes a magnet when a current flows through the wire. An electromagnet no longer acts as a magnet when the current flow stops

I just took the test and it's the correct answer for future peeps! ^-^

An electromagnet is called a temporary magnet because it produces a magnetic field only when the current flows in its coil. The magnetic field vanishes when the current is switched off.

What is electromagnet?

  • An electromagnet is a magnet whose magnetic field is generated by an electric current.
  • Wire coiled into a coil is used to make electromagnets.
  • A current flowing through the wire produces a magnetic field that is focused in the hole, which serves as the coil's core.

What is magnetic field?

  • The magnetic impact on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field.
  • In a magnetic field, a moving charge experiences a force that is perpendicular to both its own velocity and the magnetic field.

Hence, the correct option is D.

To know more about electromagnet here

https://brainly.com/question/13810372

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