Distinguish between electric potential and electric potential energy.

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Electric Potential $(V)$ Electric Potential Energy $(U)$
$(1)$ Work done against an electric field to bring a unit positive charge from infinity to a point is electric potential. $(1)$ Work done against an electric field to bring a charge $q$ from infinity to a point is electric potential energy.
$(2)$ $SI$ Unit: $J \cdot C^{-1}$ or $\text{Volt} (V)$. $(2)$ $SI$ Unit: $J$ (Joule).
$(3)$ Formula: $V = \frac{W}{q}$, where $q$ is a unit positive charge. $(3)$ Formula: $U = qV$.
$(4)$ Dimensional Formula: $[M^1 L^2 T^{-3} A^{-1}]$. $(4)$ Dimensional Formula: $[M^1 L^2 T^{-2}]$.

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