Electronics & Circuits
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Wheatstone Bridge Balance

Condition for a balanced measurement bridge.

Formula

R1R2=R3R4\frac{R_1}{R_2} = \frac{R_3}{R_4}

Variables

RResistances

Example

Used to measure unknown R

Did You Know?

The Wheatstone bridge measures tiny resistance changes and sits inside the strain gauges weighing trucks and people.

measurement