Physics · Electrical Measurements
In Kelvin's double bridge, the unknown resistance X is given by which of the following expressions?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1X = P Q S - q · r p + q + r × ( P Q - p Q )
- 2X = p Q S + q p + q - r
- 3X = P Q S - q p + q + r
- 4X = P Q S + q · r p + q + r × ( P Q - p q )✓
Correct answer
X = P Q S + q · r p + q + r × ( P Q - p q )
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