Question

Mr. Smith challenged his students to create an electromagnet that will pick up more paper clips than anyone else in the class. Timmy is very excited and begins to collect all of the necessary materials. He finds a D-cell battery, an iron nail, and a large roll of copper wire. What could Timmy do, using just these materials, to increase the strength of his electromagnet to pick up the maximum amount of paper clips?

Answer 1

Wrap the wire very tight around the iron nail.

Answer 2

c) increase the number of coils of copper he puts around the nail

this is the answer

Step-by-step explanation: