What is the advantage of a meter bridge over a Wheatstone bridge?

Explanation

### Step-by-Step Solution:

1. **Definition of Meter Bridge**: A meter bridge is an experimental setup used to measure unknown resistances. It consists of a one-meter-long wire, typically made of a uniform material, mounted on a wooden base. The wire is connected to two points where resistors can be placed.

2. **Configuration of Meter Bridge**: In a meter bridge, two resistors are connected at the ends of the wire. One of the resistors is known (R1), and the other is unknown (R2). By adjusting a sliding contact (or jockey) along the wire, the balance point can be found, which helps in calculating the unknown resistance.

3. **Functionality of Wheatstone Bridge**: A Wheatstone bridge is another circuit used to measure unknown resistances. It consists of four resistors arranged in a diamond shape. The bridge is balanced when the ratio of the two known resistors equals the ratio of the unknown resistor to the other known resistor.

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