The unknown resistance in Kelvin's double bridge is given by:

(Where Error Δ = \(\left[\frac{P}{Q}-\frac{p}{q}\right]\))

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The unknown resistance in Kelvin's double bridge is given by:

(Where Error Δ = \(\left[\frac{P}{Q}-\frac{p}{q}\right]\))

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MPPGCL JE Electrical 19 March 2019 Shift 2 Official Paper

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\(X=\left[\frac{P}{Q} S+\frac{q \Delta r}{p+q+r}\right]\)
\(X=\left[\frac{P}{Q} S-\frac{q \Delta r}{p+q+r}\right]\)
\(X=\left[\frac{P}{Q} S+\frac{q}{p+q-r}\right]\)
\(X=\left[\frac{P}{Q} S-\frac{q}{p+q+r}\right]\)

Answer 1

Kelvin's double bridge

F1 S.B 30.5.20 Pallavi D5

A Kelvin double bridge is a modified version of the Wheatstone bridge, which is used to measure low resistance values in the range with high accuracy.

In Kelvin's double bridge, the unknown resistance is given by:

X = \(\rm\left[\frac{P}{Q} S+\frac{q r\left[\frac{P}{Q}−\frac{p}{q}\right]}{p+q+r}\right]\)

\(X=\left[\frac{P}{Q} S+\frac{q \Delta r}{p+q+r}\right]\)

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Question

The unknown resistance in Kelvin's double bridge is given by:

(Where Error Δ = \(\left[\frac{P}{Q}-\frac{p}{q}\right]\))

Answer (Detailed Solution Below)

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Question

The unknown resistance in Kelvin's double bridge is given by: (Where Error Δ = \(\left[\frac{P}{Q}-\frac{p}{q}\right]\))

Answer (Detailed Solution Below)

Detailed Solution

More Measurement of R/L/C Using Bridge Circuits Questions

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The unknown resistance in Kelvin's double bridge is given by:

(Where Error Δ = \(\left[\frac{P}{Q}-\frac{p}{q}\right]\))