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Answer:

electro motive force (emf) is the amount of work required to move a unit electric charge between two points

Electro Potential is the amount of work required to move a unit electric charge between two points.

Electric potential, the amount of work needed to move a unit charge from a reference point to a specific point against an electric field.

The work W done in moving the positive charge through a distance d is

W = F′d

   = −qEd.

Electric potential is measured in joules per coulomb (i.e., volts),

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