Grade 12 Physics: Electric Fields

A small charged particle experiences an electric force of \( 0.03 \, \text{N} \) when placed in an electric field of \( 200 \, \text{N/C} \). Calculate the charge on the particle.

Determine the electric field strength at a point 0.1 m away from a point charge of \( 5 \times 10^{-6} \, \text{C} \).

Two point charges of \( 4 \, \mu \text{C} \) and \( -6 \, \mu \text{C} \) are separated by a distance of 0.3 m. Calculate the magnitude of the force between them.