Question

The material chosen for making an electromagnet should possess-
1. high melting point
2. high magnetic susceptibility
3. low melting point
4. low magnetic susceptibility

Answer 1

Correct Answer - Option 2 : high magnetic susceptibility

The correct answer is option 2) i.e. high magnetic susceptibility

CONCEPT:

• Electromagnets are materials that behave as magnets when a current-carrying wire is wound on it.
  • Electromagnets generally lose their magnetic property once the current flow through the wire is stopped.
  • They also acquire magnetic property quickly, as soon as the current starts flowing without any time lag.
• Magnetic susceptibility is the property of a substance that shows how easily the substance can be magnetized.

EXPLANATION:

• An electromagnet should immediately behave like a magnet once the current in the wire starts flowing.
• For this, the material used for electromagnets should be easily magnetized.
• Hence, it should have high magnetic susceptibility.