The potential difference between the terminals of an electric heater is `60 V` when it draws a current of `4 A` from the source. What current will the heater draw if the potential difference is increased to `120 V` ?

Explanation

To solve the problem, we will use Ohm's Law, which states that the voltage (V) across a resistor is equal to the current (I) flowing through it multiplied by the resistance (R). The formula is given by:

\[ V = I \times R \]

### Step-by-Step Solution:

1. **Identify the initial conditions**:
- Initial potential difference (V1) = 60 V
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