Mr. Bissell creates a diagram of electric and magnetic fields to teach his students about the concepts. He includes the similarities and differences between the fields on the diagram. Which of the following statements should he add about the similarities between the two fields?
A. The field lines in both magnetic and electric fields are always straight.
B. Each charged particle and magnet have both a positive and negative side.
C. Opposite charges and poles are always attracted to each other.
D. The potential energy increases as like charges or poles get farther apart.
