Electric Potential Energy

Work required to bring 2 charges together

Reference Point

Reference point depends on the polarity of the charge. For attracting charges, reference point is at $-\infty$ For a repulsing charge, reference point is at $\infty$

Formula

1 Charge in field

$E_e=qE(△d)$

2 Charges

Attraction

$E_e=-\frac{k{q}_1{q}_2}{△d}$

Repulsion

$E_e=\frac{k{q}_1{q}_2}{△d}$

Provided Electric Potential

$E_e=qV$

• $V$ is Electric Potential $W=q(△V)$
• $△V$ is Voltage