Question: What is a major advantage of using the null method with a Wheatstone bridge? The length of each leg in the circuit is the same,

What is a major advantage of using the null method with a Wheatstone bridge?
The length of each leg in the circuit is the same, so the resistance values are well-known.
A fast changing resistance value can be measured when using the null method.
Instability in the source voltage does not affect the resistance measurement.
A source voltage is not needed to power the circuit.
What is a major advantage of using the null

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