Physics · Electrical Measurements
The unknown resistance X in Kelvin's double bridge, taking the correction term into account, is given by which of the following expressions? (Where the error term Δ = PQ - pq and r is the link resistance)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1X = PQS - qp + q + r
- 2X = PQS + qp + q - r
- 3X = PQS - qΔrp + q + r
- 4X = PQS + qΔrp + q + r✓
Correct answer
X = PQS + qΔrp + q + r
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