Question

Define the intensity of the electric field at a point.

Answer 1

1. The electric field intensity is defined as the strength of the electric field at a point.
2. The intensity of the electric field at a point is equal to the electric force experienced by a unit positive charge (test charge) at that point.
3. It is a vector quantity denoted by $\underset{E}{\to }$.

Thus $\underset{E}{\to }=\underset{\frac{F}{q_0}}{\to }$ where q₀ is the test charge.

4. The SI unit of electric field intensity is $N/C$.