Physics

Question

4.3.2 Test (CST): Electromagnets

Question 2 of 20

The diagram shows an electromagnet made with copper wire, a steel nail,

and a 1.5 V battery. Which action could cause this electromagnet to be

stronger?

N

BATTERY

A. Replace the steel nail with a plastic straw.

B. Reverse the direction of the battery in the circuit.

C. Replace the battery with a 6 V battery.

D. Reduce the number of coils of wire wrapped around the nail.

SUBMIT

Answer

C. Replace the battery with a 6 V battery.

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Increasing the voltage of the battery will increase the strength of the electromagnet, so replacing the 1.5 V battery with a 6 V battery will...