Is work done in a closed loop zero?

Work done in the motion of a body over a closed loop is zero only when the body is moving under the action of conservative forces (like gravitational or electrostatic forces). It is not zero when the forces are non-conservative e.g. frictional forces etc.

Why work done on a charge is zero when it is moved in a close path?

Since the charge is moved through a cloased loop, the initial and final potential are equal, thus since electrostatic force is a conservative force, thus total work done is 0.

Is work done by friction over a closed path is zero?

Q. Assertion : Work done by friction over a closed path is not zero and no potential energy can be associated with friction. Reason : Every force encountered in mechanics have an associated potential energy.

Is a force that does some work over a closed path?

A conservative force is one for which the work done is independent of path. Equivalently, a force is conservative if the work done over any closed path is zero. A non-conservative force is one for which the work done depends on the path.

Is work done in a closed path?

Work done in a closed path is zero. The word potential energy is defined for conservative forces. Examples :- Gravitational force, Electrostatic force, spring force, etc.

What is closed path?

A path is closed if the first vertex is the same as the last vertex (i.e., it starts and ends at the same vertex.) A cycle is a simple closed path.

What is the work done in moving a unit charge along a closed path?

The correct answer is Potential. Electric potential is the “work done in moving a unit charge between two points in an electric circuit”.

What is the work done in moving a test charge around any closed path in a static field E is 1 point one equal to D Infinity zero?

Explanation: Work done in moving a charge in a closed path is zero. It is expressed as, ∫ E. dl = 0. The field having this property is called conservative or lamellar field.

Is Work energy theorem is not independent of Newton’s second law?

Work-energy theorem is not independent of Newton’s second law. Work-energy theorem holds in all inertial frames. Work done by friction over a closed path is zero. No potential energy can be associated with friction.

When the work done in moving a particle around a closed path in a field is zero then the force in the field are called?

conservative force
Equivalently, if a particle travels in a closed loop, the total work done (the sum of the force acting along the path multiplied by the displacement) by a conservative force is zero. A conservative force depends only on the position of the object.

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