A student wraps a wire around an iron nail. The student then connects the wire to a battery. The nail attracts another nail and they stick together. What force holds the two nails together?
gravitational force magnetic force electric force friction force
Question: A student wraps a wire around an iron nail. The student then connects the wire to a battery. The nail attracts another nail and they stick together. What force holds the two nails together?
A. gravitational force
B. magnetic force
C. electric force
D. friction force
Answer: