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CBSE Class 12-science Answered

Why do we prefer a potentiometer of longer length for getting the accurate readings?

Asked by Topperlearning User | 28 Apr, 2015, 09:54: AM
Expert Answer

The potential gradient can be made quite small more conveniently by using a long wire as compared to a potentiometer of small wire. If Potential gradient is small, the balancing length for a particular unknown potential difference is more. Thus, the percentage error in balancing length is reduced.

Answered by | 28 Apr, 2015, 11:54: AM
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