henryromero214
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Which of the following changes will result in a stronger electromagnet?

A. Using a longer nail

B. Using a lower voltage

C. Using more coils of wire

D. Using a shorter wire

Respuesta :

lillianwtg
the answer is going to be C
tiara143
The correct option is C. i.e. Using more coils of wire

Explanation: 

The strength of an electromagnet can be increased in the following ways:

1. By increasing the number of coils.
2. By increasing the current/voltage
3. Using an iron core, increases the strength of the electromagnet.

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