MY NAME IS KARTHIK.MY NATIVE IS PANPOLI NEAR COURTRALAM.IAM DOING MY THIRD YEAR BE IN SCAD COLLEGE OF ENGINEERING AND TECHNOLOGY AT CHERANMHADEVI.
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WITH OUT POWER NO ONE IN THE WORLD.SO WE ARE PROUD TO SAY POWER (EEE) FAMILY

 

potential difference

Potential difference is the work done per unit charge to transfer a charge from one point to another (also Voltage)

i.e V = W
Q

Unit Volt V or J C-1

Volt is the p.d. between two points if one joule of work is done bringing one coulomb from one point to the other

Potential at a point is the p.d. between a point and the Earth, where the Earth is at zero potential
 
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