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Bob and Sarah build an electromagnet by wrapping a wire around a nail and connecting the wire to both terminals of a battery. When they test the electromagnet, it can pick up six paper clips. Their teacher wants all groups to pick up at least 10 paper clips. What revisions could Bob and Sarah make to increase the number of paper clips their electromagnet picks up

Sagot :

AL2006idn

1). Wrap more turns of the wire around the nail.

2). Increase the electrical current through the wire. (Do this by inserting another battery in the circuit, in series with the first one.)

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