What are the applications of a Wheatstone bridge?
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Following are the applications of a Wheatstone bridge –
Measurement of low resistance by means of direct application of Ohm’s law can’t be done accurately. Therefore, in such cases, Wheatstone bridge circuits can be installed for accurate measurements.
Some materials like semiconductors tend to vary resistance with the temperature, and as compared to ordinary resistors, these variations are huge. These materials are recognized as thermistors. A minor change in temperatures can be measured using thermistors for the Wheatstone bridge arrangement.
Wheatstone bridge circuit helps to measure the changes in the intensity of light using the replacement of an unknown resistor with a photoresistor. The photoresistor functions on the basis of incident light.
Wheatstone bridge is helpful in measuring strain and pressure.