Assessment: Electric Field

If the distance between two charges is doubled, what happens to the force between them?

How are equipotential surfaces oriented relative to electric field lines?

Where does charge concentrate most densely on an irregularly shaped charged conductor?

A charge of 3 × 10⁻⁶ C experiences a force of 0.6 N. Find the electric field intensity.

Two parallel plates 0.01 m apart carry a potential difference of 500 V. Find the electric field strength between them.

Two charges of 6 × 10⁻⁶ C and 1 × 10⁻⁶ C are 0.3 m apart. Find the force between them (k = 8.99 × 10⁹ N·m²/C²).

Find the distance from a +8 × 10⁻⁶ C charge at which the electric potential is 71,920 V (k = 8.99 × 10⁹ N·m²/C²).

Why does grounding an appliance improve electrical safety?

Why are lightning rods designed with sharp points rather than flat tops?

A charge of 4 × 10⁻⁶ C is moved from a point at 500 V to a point at 200 V. What can you say about the work done?