want conclusion on physics meter bridge project
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Explanation:
Meter bridge :
It is an electrical Instrument use to measure the value of unknown Resistance .
It work on Balanced wheat stone Bridge .
The wire(1 meter ) of meter bridge is made up of alloy like Manganin , Constantan .
The thick metallic plate of meter bridge is made up of copper because to minimise the resistance.
The reason behind use of alloy like Manganin or Constantan because they are independent of temperature means they do not depend on temperature .
In using jokey during experiment do not slide it on wire because it can damage or effect the cross sectional area of wire and due to this we cannot calculated accurate value of Resistance.
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