Question

Solve numerical example.

Calculate the electric field due to a charge of −8.0×10⁻⁸ C at a distance of 5.0 cm from it.

Answer 1

Given: q = −8.0×10⁻⁸ C, r = 5 cm = 5 × 10⁻² m

To find: Electric field (E)

Formula: E = `1/(4πε_0)"q"/"r"^2`

Calculation: From formula,

E = `9xx10^9xx((-8xx10^-8))/(5xx10^-2)^2`

= −2.88 × 10⁵ N/C

Electric field due to a charge is −2.88 × 10⁵ N/C.