Question

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

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

Answer 1

Answer: (A)

Correct answer is (a) Fields are useful for understanding forces acting through a distance