1.

The Wheatstone bridge consists of a power source, 3 known resistors, a resistor whose value is to be measured, and a null detector. Which of the following is not a source of errors in a Wheatstone bridge?

A. Limiting errors of the known resistors
B. Poor sensitivity of the null detector
C. Fluctuations in the power supply voltage
D. Thermal e.m.f.s in the bridge circuit
Answer» D. Thermal e.m.f.s in the bridge circuit


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