If the galvanometer shows a deflection when the Wheatstone bridge is not balance

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Question: If the galvanometer shows a deflection when the Wheatstone bridge is not balanced, what does it indicate?

Options:

Correct Answer: There is a potential difference

Solution:

A deflection in the galvanometer indicates that there is a potential difference across it, meaning the bridge is not balanced.

If the galvanometer shows a deflection when the Wheatstone bridge is not balanced, what does it indicate?

If the galvanometer shows a deflection when the Wheatstone bridge is not balanced, what does it indicate?

Step 1: Understand what a Wheatstone bridge is. It is a circuit used to measure unknown resistances.
Step 2: Know that a galvanometer is an instrument that detects small electric currents.
Step 3: When the Wheatstone bridge is balanced, the current through the galvanometer is zero, and it shows no deflection.
Step 4: If the galvanometer shows a deflection, it means there is some 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 resistances in the Wheatstone bridge are not equal, which means the bridge is not balanced.

Wheatstone Bridge – A circuit used to measure unknown electrical resistances by balancing two legs of a bridge circuit.
Galvanometer – An instrument for detecting and measuring small electric currents, indicating potential differences.
Balance Condition – The state in which the potential difference across the galvanometer is zero, indicating equal resistance in both legs of the bridge.