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Explain Kelvin's double bridge and its application in very low resistance measurement.
written 4.5 years ago by gravatar for teamques10 teamques10 ★ 70k modified 3.8 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k
electronic instrumentation and measurement
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written 4.5 years ago by gravatar for teamques10 teamques10 ★ 70k

Answer: Kelvin’s bridge is a modification of Wheatstone’s bridge and always used in measurement of four-terminal low resistance. Is is also called as double-bridge as it consists of two set of ratio arms.The circuit diagram is shown below: 

One set of arms consists of the resistor $R_1 , \ R_2$ …

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