Newton per Coulomb (N/C)

Joule (J)

Watt (W)

Volt (V)

$$E = F/q$$

$$E = q/F$$

$$E = F \times q$$

$$E = F - q$$

From positive to negative charge

From negative to positive charge

Circular around the charge

Randomly oriented

Zero

Equal to the surface charge density

Equal to the external electric field

Infinite

$$E = \frac{1}{2}CV^2$$

$$E = CV$$

$$E = \frac{1}{2}QV$$

$$E = QV$$

@@E = - abla V@@

$$E = V/q$$

$$E = V \times q$$

$$E = V + q$$

Radially outward from the charge

Radially inward towards the charge

Tangential to the charge

Perpendicular to the charge

Decreases

Increases

Remains the same

Becomes zero

It moves in the direction of the electric field

It moves opposite to the direction of the electric field

It remains stationary

It moves in a circular path

Copper

Rubber

Glass

Wood

$$E = \frac{kq}{r^2}$$

$$E = \frac{kr}{q^2}$$

$$E = \frac{q}{kr^2}$$

$$E = \frac{q^2}{kr}$$

It is uniform

It is strongest near the edges

It is zero

It varies with distance

Increases the capacitance

Decreases the capacitance

Has no effect on capacitance

Makes the capacitor conductive

The number of electric field lines passing through a surface

The force experienced by a charge in an electric field

The potential energy of a charge in an electric field

The current flowing through a conductor