Question

How to minimize the drift in the value of resistance measured using a Wheatstone bridge?

a.

by using a high precision null detector

b.

by keeping the lead wire resistances within 0.2 mΩ

c.

by using a e.m.f source of minimum value

d.

by minimizing the flow of current

Posted under Electrical Measurement and Instrumentation

Answer: (b).by keeping the lead wire resistances within 0.2 mΩ

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Q. How to minimize the drift in the value of resistance measured using a Wheatstone bridge?
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