Metre Bridge

 A meter bridge


A meter bridge, also known as a slide wire bridge, is a device used to measure the resistance of an unknown resistor by comparing it with a known resistor. It's a classic experiment in physics labs!


Here's how it works:


Meter Bridge Principle


1.Balancing the bridge: The meter bridge is balanced when the ratio of the unknown resistance to the known resistance equals the ratio of the lengths of the wire segments.

2. Measuring resistance: By adjusting the position of the jockey on the wire, the bridge is balanced, and the unknown resistance can be calculated.


Applications

1. Resistance measurement: Meter bridges are used to measure unknown resistances accurately.

2. Physics experiments: Meter bridges are commonly used in physics labs to demonstrate the principles of electricity and resistance.


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