In the given Wheatstone bridge, R1 = 500Ω,  R3 = 200Ω. The bridge is balanced when R2 is adjusted to 125Ω.

In the given Wheatstone bridge, R1 = 500Ω,  R3 = 200Ω. The bridge is balanced when R2 is adjusted to 125Ω. Find the resistance Rx In the given Wheatstone bridge, R1 = 500Ω,  R3 = 200Ω. The bridge is balanced when R2 is adjusted to 125Ω. Find the resistance Rx

SOLUTION

The given figure in the question is

In the given Wheatstone bridge, R1 = 500Ω,  R3 = 200Ω. The bridge is balanced when R2 is adjusted to 125Ω. Find the resistance Rx

Given

R1 = 500 Ω

R2 = 125 Ω

R3 = 200Ω

Rx = ?

According to Wheatstone bridge relation

R1 Rx = R2 R3

500 × R= 125 × 200

R= 50 Ω

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