Difference between wheatstone bridge and kelvin bridge
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A Wheatstone bridge measures electrical resistance by balancing a bridge circuit. The circuit has two legs, of which one contains the unknown resistance of value between 1 ohm to 10 ohms. Apart from resistance, this setup can also measure impedance, capacitance and inductance.
The Kelvin bridge is more advanced and helps in measuring resistances less than 1 ohm. However, it has two more resistors than the Wheatstone bridge.
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