Which of these is NOT true about electromagnets?

They are permanent.

Increasing the battery makes them stronger.

They need a battery or other source of current.

Increasing the number of coils makes them stronger.

Question

02-06-2022
Chemistry

Answered

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Which of these is NOT true about electromagnets?

They are permanent.

Increasing the battery makes them stronger.

They need a battery or other source of current.

Increasing the number of coils makes them stronger.

Sagot :

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