Question

Which of these statements best describes the difference between electromagnetic and gravitational forces in the solar system?
a. Electromagnetic forces have a shorter range than gravitational forces.
b. Electromagnetic forces have a longer range than gravitational forces.
c. Electromagnetic forces are only repulsive but gravitational forces are both attractive and repulsive.
d. Electromagnetic forces are only attractive but gravitational forces are both attractive and repulsive.

Answer 1

Both fall off as 1/distance squared. c and d are wrong. Gravitation prevails because most materials are electrically neutral, but all have mass. a is not quite right but best.

Answer 2

@douglaswinslowcooper
How do you determine if they are in shorter range or a longer range?
Thank you anyways!