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Question
When unknown resistance is determined by meter bridge, the error due to contact resistance is minimised by ______
Options
connecting both the resistances only in one gap
interchanging the position of known and unknown resistances
using uniform wire
obtaining the null point near the ends of the wire
MCQ
Fill in the Blanks
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Solution
When unknown resistance is determined by meter bridge, the error due to contact resistance is minimised by interchanging the position of known and unknown resistances.
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