Electromagnetic Theory: Unit II: (a) Electric Work Potential and Energy
Conservative Field
Electrostatics
• It is seen that, the work done in moving a test charge around any closed path in a static field E is zero. This is because starting and terminating point is same for a closed path.
Conservative Field
•
It is seen that, the work done in moving a test charge around any closed path
in a static field E is zero. This is because starting and terminating point is
same for a closed path. Hence upper and lower limit of integration becomes same
hence the work done becomes zero. Such an integral over a closed path is
denoted as,
Key
Point : The 
sign indicates integral over a closed
path. Such a field having property given by equation (4.11.1), associated with
it, is called conservative field or lamellar field. This indicates that the
work done in 
and hence potential between two points is independent
of the path joining the two points.
Review Question
1. Define conservative field.
Electromagnetic Theory: Unit II: (a) Electric Work Potential and Energy : Tag: : Electrostatics - Conservative Field
Electromagnetic Theory: Unit II: (a) Electric Work Potential and Energy
Under Subject
Electromagnetic Theory
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