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If you make an electromagnet using a battery circuit and a steel nail, how can you increase its magnetic strength?


A.

replace the nail with a copper rod


B.

wrap more coils of wire around the nail


C.

use a longer nail


D.

remove the plastic insulation from the wire coil

Verified Answer :

scme1702
BWrap more coils of wire around the nail
Increasing the number of coils in an electromagnet increases the strength of the magnetic field.

Answer:

B.

Explanation:

B. Wrap more coils of wire around the nail

Increasing the number of coils in an electromagnet increases the strength of the magnetic field.

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