Question

The formula for electric flux when the electric field is uniform is expressed as which of the following?

Options

• \[\Phi = EA \sin \theta\]

• \[\Phi = EA \cos \theta\]

• \[\Phi = E + A\]

• \[\Phi = E/A\]

Answer 1

For a uniform electric field, electric flux is given by \[\Phi = EA \cos \theta\], where E is the magnitude of the electric field, A is the area of the surface, and θ is the angle between the electric field vector and the area vector. The cosine term accounts for the orientation dependence.