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nika2105 [10]
3 years ago
14

Betty made a simple electromagnet using just a battery and a wire. What could Betty do to increase the strength of her electroma

gnet?
options:

Coil the wire around a test tube.

Coil the wire around a toothbrush

Coil the wire around a paper towel roll.

Coil the wire around a nail.
Biology
1 answer:
Andreyy893 years ago
7 0
Answer:
Coil the wire around a nail

Explanation:
Nail is a metal which can conduct electric
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