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What is the condition for a Wheatstone bridge to be balanced?

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Question: What is the condition for a Wheatstone bridge to be balanced?

Options:

  1. R1/R2 = R3/R4
  2. R1 + R2 = R3 + R4
  3. R1 - R2 = R3 - R4
  4. R1 * R2 = R3 * R4

Correct Answer: R1/R2 = R3/R4

Solution: 

The condition for a Wheatstone bridge to be balanced is R1/R2 = R3/R4.

What is the condition for a Wheatstone bridge to be balanced?

Practice Questions

Q1
What is the condition for a Wheatstone bridge to be balanced?
  1. R1/R2 = R3/R4
  2. R1 + R2 = R3 + R4
  3. R1 - R2 = R3 - R4
  4. R1 * R2 = R3 * R4

Questions & Step-by-Step Solutions

What is the condition for a Wheatstone bridge to be balanced?
Correct Answer: R1/R2 = R3/R4
  • Step 1: Understand that a Wheatstone bridge is a circuit used to measure unknown resistances.
  • Step 2: Identify the four resistors in the Wheatstone bridge: R1, R2, R3, and R4.
  • Step 3: Recognize that the bridge is balanced when there is no current flowing through the middle part of the circuit.
  • Step 4: Know that the condition for balance is when the ratio of the resistors is equal: R1 divided by R2 should equal R3 divided by R4.
  • Step 5: Write the condition mathematically as R1/R2 = R3/R4.
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