Find the work done in moving a test charge. From one charged conductor to another

Correct the following statement. Work has to be done in moving a test charge from one point to another on an equipotential surface.

Read the statement carefully and write 'Yes' for correct statements and 'No' for wrong statements : Work has to be done in moving a test charge from one point to another on a charged conductor.

What is the work done in moving a test charge over the surface of an isolated charged metal sphere.

Explain when the work is done on the test charge.

Two points in an electric field have a potential difference of 5V. What is the amount of work done in moving a charge of 3C from one point to the other? (Write the answer only)

The amount of work done in moving a charge from one point to another in an equipotential surface is _____ ?

Explain when work is done by the test charge