Electric Potential and Electric Potential Energy

Front

What is the formula for electric work done on a moving charge in a uniform electric field?

Back

W = qEx Δx

Front

What is the work done by a conservative force?

Back

W = -ΔPE

Front

How is work done on a charge defined in terms of potential energy?

Back

ΔPE = -W = -qEx Δx

Front

What is electric potential difference (ΔV)?

Back

The difference in electric potential energy per unit charge between two points.

Front

How do you calculate the field strength of a uniform field between charged parallel plates?

Back

E_x = -ΔV/Δx

Front

How do you calculate electric potential due to a point charge?

Back

Using the formula V = k * q / r, where k is Coulomb's constant, q is the charge, and r is the distance from the charge.

Front

How do you calculate electric potential energy due to a system of two point charges?

Back

Using the formula U = k * (q1 * q2) / r, where k is Coulomb's constant, q1 and q2 are the charges, and r is the distance between them.

Front

What is an electron volt (eV)?

Back

1 eV = 1.60 x 10^-19 J.

Front

What are equipotential surfaces?

Back

Surfaces where the electric potential is the same at every point.

Front

How do you sketch equipotential surfaces for a point charge?

Back

Draw concentric circles around the point charge, indicating that potential is constant on each circle.