A body is moved along a closed loop. Is the work done in moving the body necessarily zero ? If not, state the condition under which work done over a closed path is always zero.

A body is moved along a closed loop. Is the work done in moving the the body necessarily zero ? If not, state the condition under which work done over a closed path is always zero.

Write three conditions under which work done is zero.

When is the work done on the body said to be zero ?

In a conservative force field, work done on a closed path is _____.

Show that the work done in moving a unit charge along a closed path is zero.

Does the work done in moving a body depend on the time in which the work is done ?