Question

A point charge of 2.0 μC is at the centre of a cubic Gaussian surface 9.0 cm on edge. What is the net electric flux through the surface?

Answer 1

Φ = `q/ε_0`

= `(2 xx 10^-6)/(8.85 xx 10^-12)`

= 0.23 × 10⁶

or Φ = 2.3 × 10⁵ N m² C^-1