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In a Wheatstone bridge, if the galvanometer shows a current, what does it indica
In a Wheatstone bridge, if the galvanometer shows a current, what does it indicate?
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Practice Questions
1 question
Q1
In a Wheatstone bridge, if the galvanometer shows a current, what does it indicate?
The bridge is balanced
The bridge is unbalanced
The resistances are equal
The circuit is open
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A current in the galvanometer indicates that the bridge is unbalanced.
Questions & Step-by-step Solutions
1 item
Q
Q: In a Wheatstone bridge, if the galvanometer shows a current, what does it indicate?
Solution:
A current in the galvanometer indicates that the bridge is unbalanced.
Steps: 5
Show Steps
Step 1: Understand what a Wheatstone bridge is. It is a circuit used to measure unknown electrical resistances.
Step 2: Know that a Wheatstone bridge has four resistors and a galvanometer (a device that detects current).
Step 3: When the bridge is balanced, no current flows through the galvanometer.
Step 4: If the galvanometer shows a current, it means there is a difference in resistance between the two sides of the bridge.
Step 5: This difference indicates that the bridge is unbalanced, meaning the resistances are not equal.
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