For the post office box arrangement to determine the value od unknown resistance, the unknown resistance should be connected between, (a) `B` and `C` (b) `C` and `D` (c) `A` and `D` (d) `B_(1)` and `C_(1)` . .
Text Solution
Verified by Experts
The correct Answer is:
C
`BC, CD` and `BA` are known resistances. The unknown resistance is connected between `A` and `D`.
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