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 are stronger 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.

Electromagnetic forces are stronger than gravitational forces.

Explanation:

Electromagnetic and gravitational forces both are fundamental forces present in nature. The force that exists between the charged particles are electromagnetic forces while the force that exists between two objects in the universe is called gravitational force.      

The one of the difference between these two forces is that the gravitational force is always attractive while the electromagnetic force can be attractive or repulsive.  

Electromagnetic forces are stronger than gravitational forces. It is approximate 10³⁹ times stronger than gravitational force. Hence, the correct option is (b).

grav potential energy