Brielle tests the difference in the magnetic force of two electromagnets with different numbers of wire turns around the iron nails. She observes that the electromagnet with ten wire turns attracts more paper clips than the electromagnet with seven wire turns. What is her conclusion?

Question

Responses

Magnetic force increases with an increase in the number of wire turns around an iron nail.
Magnetic force increases with an increase in the number of wire turns around an iron nail.

Magnetic force is not affected by a change in the number of wire turns around an iron nail.
Magnetic force is not affected by a change in the number of wire turns around an iron nail.

Magnetic force increases with a decrease in the number of wire turns around an iron nail.
Magnetic force increases with a decrease in the number of wire turns around an iron nail.

Magnetic force decreases with an increase in the number of wire turns around an iron nail.

Answer 1

Brielle's conclusion based on her observations should be:

Magnetic force increases with an increase in the number of wire turns around an iron nail.

This is supported by her finding that the electromagnet with ten wire turns attracted more paper clips than the one with seven wire turns.