The storage battery of a car has an emf of 12 V. If the internal resistance of the battery of `0.4 Omega`, What is the maximum current that can be drawn from the battery ?

Explanation

To find the maximum current that can be drawn from a car battery with a given EMF and internal resistance, we can use Ohm's Law and the formula for current in a circuit with internal resistance.

### Step-by-Step Solution:

1. **Identify the Given Values**:
- EMF (Electromotive Force) of the battery, \( E = 12 \, \text{V} \)
- Internal resistance of the battery, \( r = 0.4 \, \Omega \)

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