Answers

2014-09-09T20:58:44+05:30
Work done by the electric force on unit positive charge to move it through a distance is called potential difference. it is denoted by V . this potential difference is also called as voltage. SI unit of potential difference is "volt" and denoted by V.
 1 volt = 1 joule / 1 coulomb
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2014-09-09T21:01:41+05:30
Potential difference is the difference in energy of two location.The potential difference between two objects is the work done in moving unit charge from one point to another.
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potential difference between two objects is the work done in moving unit charge from one point to another. charges are always moving from higher potential to lower potential.its unit is volt