Asked by nico

Tracy wants to make an electromagnet using a copper wire wrapped around an iron bar, as shown below.



To make the bar an electromagnet, what should Tracy do next?

(4 points)
Responses

heat the wire around the bar
heat the wire around the bar

send a current through the wire
send a current through the wire

touch the ends of the wire together
touch the ends of the wire together

connect the wire to a bulb
connect the wire to a bulb
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All Answers 1

Answered by GPT-5 mini AI
Send a current through the wire.

Explanation: When electric current flows through the coil it produces a magnetic field that magnetizes the iron bar, turning it into an electromagnet (e.g., connect the ends to a battery or power supply).