What is the convention for direction of an electric field?'

Explanation

### Step-by-Step Solution:

1. **Understanding Electric Field**: An electric field is a region around a charged object where other charged objects experience a force. The electric field is represented by field lines.

2. **Direction of Electric Field Lines**: The convention for the direction of electric field lines is that they point away from positive charges and towards negative charges. This means that if you have a positive charge, the electric field lines will radiate outward from it.

3. **Field Line Representation**: The density of the field lines indicates the strength of the electric field. Closer lines mean a stronger field, while lines that are further apart indicate a weaker field.

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