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GATE 2022 IN – Question 22

Measurements · Electrical bridges · 1 mark · Multiple select

In which of the following bridge(s) is the balancing condition frequency-independent?

  1. Maxwell bridge
  2. Wien bridge
  3. Schering bridge
  4. Wheatstone bridge

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Show answer and explanation

Correct answer: (A) Maxwell bridge; (C) Schering bridge; (D) Wheatstone bridge

Explanation

Maxwell and Schering balances separate real and imaginary conditions so the component-balance equations do not require frequency adjustment. Wheatstone is resistive and frequency-independent. Wien explicitly selects a balance frequency.

Hence **A,C,D**.