If the galvanometer shows a deflection in a Wheatstone bridge, what can be inferred?
Correct Answer: Bridge is unbalanced
- Step 1: Understand what a Wheatstone bridge is. It is a circuit used to measure unknown resistances.
- Step 2: Know that a galvanometer is a device that detects small electric currents.
- Step 3: When the Wheatstone bridge is balanced, the galvanometer shows no deflection (no current).
- Step 4: If the galvanometer shows a deflection, it means there is a current flowing through it.
- Step 5: A current flowing through the galvanometer indicates that there is a potential difference across it.
- Step 6: A potential difference means that the Wheatstone bridge is unbalanced.
- Step 7: Therefore, if the galvanometer shows a deflection, we can infer that the bridge is unbalanced.
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