Electric Field Due to Point Charge

Electric Field Due to Point Charge

### Formula

$$E=\frac{1}{4\pi\epsilon_0}\frac{q}{r^2}$$

### Terminologies

- q → Source charge.

- r → Distance from charge.

### Conditions / Special Cases

- Field direction:

For positive charge:

$$Away\ from\ charge$$

For negative charge:

$$Towards\ charge$$

### Usage

- Used in point charge field calculations.