Question

E is the electric field intensity at any point in a uniform electric field.

1. What is meant by uniform electric field?

2. Represent a uniform electric field using lines of force.

3. Calculate energy stored per unit volume of the space if E = 2V/m.

Answer 1

1. Region where magnitude and direction of electric field remain same.

2. lines of force are parallel and equidistant.

3. Energy density = \(\frac{1}{2}\) ε₀ E² = \(\frac{1}{2}\) × 8.85 × 1012 × 22

= 17.7 J/m³