Wheatstone Bridge Hard
Balanced Wheatstone bridge condition:
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About This Question
- Subject
- physics
- Chapter
- current electricity
- Topic
- wheatstone bridge hard
- Difficulty
- Hard
- Year
- 2025
Solution
Correct Answer:
R1/R2 = R3/R4
A Wheatstone bridge is in balance when no current flows through the galvanometer in the bridge arm (Ig=0).
- This occurs when the potential at the two junction points of the galvanometer arm is equal.
- For a bridge with resistors R1,R2 on one side and R3,R4 on the other side of the junctions: R2R1=R4R3
This hard difficulty physics question is from the chapter current electricity, covering the topic of wheatstone bridge hard. It appeared in the 2025 exam.
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