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GATE EE 2026 Set 1 — Question 57

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NAT+2 / -0EasyWheatstone & Kelvin BridgeBridges & PotentiometersElectrical & Electronic Measurements

Electrical & Electronic Measurements → Bridges & Potentiometers → Wheatstone & Kelvin Bridge

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Question

The resistance values of the Wheatstone bridge shown are:
P=2000 ΩP = 2000\ \Omega, Q=500 ΩQ = 500\ \Omega, R=3000 ΩR = 3000\ \Omega. The battery voltage E=50VE = 50\text{V}.
The battery has an internal resistance of 1 Ω1\ \Omega and the Galvanometer (G) has a resistance of 50 Ω50\ \Omega.
Wheatstone bridge drawn as a diamond of four resistor arms: P on the upper left, Q on the upper right, R on the lower left and S on the lower right, S drawn as a variable resistor with an arrow. Galvanometer G is connected vertically between the top junction of P and Q and the bottom junction of R and S. Battery E is connected between the left junction of P and R and the right junction of Q and S.
The value of the resistance SS for balanced condition is _____________ Ω\Omega
(Answer in integer)
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