Which of the following will most likely happen when a person tests the strength of an electromagnet by increasing the number of times he or she wraps a wire in coils around a metal nail?
A.
The number of metal coils will have no effect on the magnetic field of the electromagnet.
B.
The magnetic field of electromagnet will increase and then decrease as the number of coils increases.
C.
The electromagnet will be able to pick up more metal tacks as the number of coils increases.
D.
The electromagnet will pick fewer metal tacks as the number of coils increases.