Q. ] In a Wheatstone's meter-bridge experiment, the null point is obtained in middle one third portion of wire. Why is it recommended?

Q. ] In a Wheatstone's meter-bridge experiment, the null point is obta

1.	Q. ] In a Wheatstone's meter-bridge experiment, the null point is obtained in middle one third portion of wire. Why is it recommended?
Answer» The null point should be obtained PREFERABLY at the middle one-third portion of the wire of METERBRIDGE so as to GET maximum accuracy. In this case the ratio arms are nearly equal and the END resistances of copper strips also PRODUCE the least effect. Hence the meterbridge is most sensitive.

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Q. ] In a Wheatstone's meter-bridge experiment, the null point is obtained in middle one third portion of wire. Why is it recommended?​

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Q. ] In a Wheatstone's meter-bridge experiment, the null point is obtained in middle one third portion of wire. Why is it recommended?