Question 3
Maria makes an electromagnet shown in the figure below. The battery has a voltage of 6.0V, and she uses an iron nail. Which of the following would increase the strength of the magnetic field produced?
Direction of
Current
North
Pole
South
Pole
A
Doubling the number of times the wire wraps around the nail
B
Changing the battery to a 3.0V battery
Reversing the direction of the current flow.
D
Replacing the iron nail with one made of plastic
Answers: 1
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Question 3
Maria makes an electromagnet shown in the figure below. The battery has a voltage of 6.0...
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