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Why is Electric Potential Scalar?

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Answer:  The amount of energy required to move a unit of electric charge from a reference point to a specific place in an electric field is known as the electric potential.

It is also defined as the amount of work required to move a unit positive charge from infinity to the location where the primary charge is acting. Electric potential is a scalar number.

The work done is defined as the dot product of force and displacement, which is a scalar quantity.

W = F.S

Since work is the dot product of force and displacement, it is a scalar.