wheatstone bridge lab report.docx - TITLE WHEATSTONE BRIDGE...

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TITLE : WHEATSTONE BRIDGE CIRCUIT WITH POTENTIOMETER 1
WHEATSONE BRIDGE CIRCUITE WITH POTENTIOMETER The Wheatstone bridge was invented by Samuel Hunter Christie in 1833 the Wheatstone bridge was improved and popularized by Charles Wheatstone in 1843 . the Wheatstone bridge developed to measure unknown resistance values , nowadays digital multimeters measures resistances with the simplest way the Wheatstone bridge can be used to measure a very low values of resistances in milli ohms range . Although there are many applications for the Wheatstone bridge circuits to interface various transducers and sensors . The Wheatstone bridge is an easy simple built circuit , it contain three resistors in different values and a potentiometer all connected in a series-parallel branches or diamond shape (diamond shape in this experiment) connected to the circuit and the circuit is connected to a voltage supply transmitter and ground producing zero voltage difference between the two parallel branches as shown . 2
Equipment’s : 1- three resistors (with different values ) 2- potentiometer 3- multimeter 4-connection wires 5-breadboard 6-power supply Procedures : First- unbalanced condition: 1. The 5V from the power supply was settled to the Wheatstone bridge circuit with potentiometer . 2. putting three different resistances in the breadboard with the potentiometer after measure them by using the multimeter, and putting the potentiometer at 713 ohms value , and adding value from 1000 to 600 ohms to the next experiment by adjusting the potentiometer, and this was for the unbalanced condition Wheatstone bridge circuit with potentiometer and starting to take the

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