Ahmad made a very simple electromagnet out of a nail, copper wire, and a AAA-sized battery. His magnet was able to lift one paper clip from 2 centimeters away. Which of the following is NOT a way Ahmad can improve the strength of his electromagnet?

Question

A.
He can reverse the orientation of his battery.

B.
He can use a thicker piece of the copper wire.

C.
He can increase the size and voltage of his battery.

D.
He can use longer wire for more coils around the n

Answer 1

ail.