KCET2022PhysicsElectrostatics
Electrical 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?
Options
- AGravitational or electric field does not exist in the space around an object.
- BFields are useful for understanding forces acting through a distance.
- CThere is no way to verify the existence of a force field since it is just a concept.
- DThe field concept is often used to describe contact forces.
Correct answer
B. Fields are useful for understanding forces acting through a distance.
Step-by-step solution
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. Therefore, force concept of field is used to explain gravitational and electrostatic phenomena.