Question

Electrical as well as gravitational affects can be thought to be caused by fields. Which of the following is true of an electrical or gravitational field?

• A. The field concept is often used to describe contact forces
• B. Gravitational or electric field does not exist in the space around an object
• C. Fields are useful for understanding forces acting through a distance
• D. There is no way to verify the existence of a force field since it is just a concept

Answer 1

Answer: (C)

In physics, concept of field is a model used to explain the influence that a massive body or charged particle extends into the space around itself, producing a force on another massive body or charged body placed in space.
Thus, concept of field is used to explain gravitational and electrostatic phenomena.