Question

A good electromagnet would ?​

Answer 1

Answer:

a good conducting of silver

Answer 2

Explanation:

iron

However, iron has a relative permeability of 5,000 when it is 99.8 percent pure, and the relative permeability of soft iron with 99.95 percent purity is a massive 200,000. This huge relative permeability is why iron is the best core for an electromagnet.

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