Question

If a coil is wound around a steel core and electric current is passed through the coil, the steel core acts as a?

a.

Electromagnet

b.

Permanent magnet

c.

Neither electromagnet nor permanent magnet

d.

Either electromagnet or permanent magnet

Answer: (b).Permanent magnet

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Q. If a coil is wound around a steel core and electric current is passed through the coil, the steel core acts as a?

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