Which variable does not increase the strength of an electromagne(1 point)

Question

Responses

Adding batteries to the electromagnet
Adding batteries to the electromagnet

Increasing the distance between the coils
Increasing the distance between the coils

Increasing the number of coils
Increasing the number of coils

Increasing the thickness of the wire

Answer 1

The variable that does not increase the strength of an electromagnet is:

Increasing the distance between the coils.

Increasing the distance between the coils actually reduces the strength of the electromagnet, as the magnetic field becomes weaker with greater distance. The other options—adding batteries, increasing the number of coils, and increasing the thickness of the wire—can all enhance the strength of the electromagnet.