Question

Hii
Plzz give me proof of wheatstone bridge

Answer 1

Hii Friend....
Your answer is in attachment.....

Answer 2

Wheatstone bridge circuit diagram. The unknown resistance Rx is to be measured; resistances R1, R2and R3 are known and R2 is adjustable. If the measured voltage VG is 0, then R2/R1 = Rx/R3.

A Wheatstone bridge is an electrical circuitused to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component. The primary benefit of the circuit is its ability to provide extremely accurate measurements (in contrast with something like a simple voltage divider).
 Its operation is similar to the original potentiometer.