# What is a meter bridge class 12?

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## What is a meter bridge class 12?

The metre bridge, also known as the slide wire bridge consists of a one metre long wire of uniform cross sectional area, fixed on a wooden block. As the jockey slides over the wire AC, it shows zero deflection at the balancing point (null point).

What is metre bridge and its principle?

The meter bridge principle is based on the Wheatstone Bridge circuit which says that if at any point or length (of a wire), the ratio of two resistances (say R1 and R2) is equal to the ratio of another two resistances (say R3 and R4 where R4 is the unknown resistance), then there shall be no flow of current at that …

Why is called metre bridge?

The reason why this bridge is called as Meter Bridge is because of the fact that it works on the Wheatstone bridge’s principle. So, people also popularly call it as Wheatstone’s meter bridge. Another thing is that the wire length used in this circuit is of 1 meter, so it has got its name as a meter bridge.

### What is meter bridge construction?

It consists of a straight and uniform wire of materials like Manganin. The wire is of one meter length stretched along the side of a meter scale AC. The ends of the wire are attached to L-shaped thick copper strips of negligible resistance at A and C.

What is a meter bridge?

A meter bridge is an electrical apparatus using which we can measure the value of unknown resistance. It is made using a metre long wire of uniform cross-section. This wire is either nichrome or manganin or constantan. The principle of working of a meter bridge is the same as the principle of a Wheatstone bridge.

What is meter bridge in physics?

Hint: A meter bridge is an electrical apparatus that helps in determining the value of unknown resistance of a metal coil. Complete step by step answer: Meter Bridge works on the principle of the Wheatstone bridge. A Wheatstone bridge is an electrical network which is used to calculate the value of unknown resistance.

#### What is a metre bridge?

A meter bridge is an electrical apparatus using which we can measure the value of unknown resistance. It is made using a metre long wire of uniform cross-section. A meter bridge or Slide wire bridge is designed from a Wheatstone bridge. It is the most basic and functional application of a Wheatstone bridge.

What is meter bridge what is it used for?

A meter bridge also called a slide wire bridge is an instrument that works on the principle of a Wheatstone bridge. A meter bridge is used in finding the unknown resistance of a conductor as that of in a Wheatstone bridge.

Who discovered meter bridge?

The Wheatstone bridge was invented by Samuel Hunter Christie (sometimes spelled “Christy”) in 1833 and improved and popularized by Sir Charles Wheatstone in 1843. One of the Wheatstone bridge’s initial uses was for soils analysis and comparison.

## What are the application of meter bridge?

The metre bridge is a device which is a practical application of Wheatstone bridge used for measuring an unknown resistance and for comparing two unknown resistances. Potentiometer is a three terminal resistor with sliding or moving contact. It provides resistance/opposition to the flow of current current.

What is meter bridge used for?

A Meter bridge is used to calculate resistance values with high accuracy. They work on the principle of a balanced Wheatstone bridge.