A constant voltage of 3 V is supplied to a potentiometer wire. A cell of emf 2 V is balanced by a voltage drop across 416 cm of the wire. Find the total length of the potentiometer wire.

Explanation

To solve the problem, we need to find the total length of the potentiometer wire (L) using the information given about the voltage supplied and the voltage drop across a certain length of the wire.

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Voltage supplied to the potentiometer wire (V) = 3 V
- EMF of the cell (E) = 2 V
- Length of wire balanced by the cell (d) = 416 cm
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