In a Wheatstone bridge, if the galvanometer shows a current, which of the follow

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Question: In a Wheatstone bridge, if the galvanometer shows a current, which of the following statements is true?

Options:

Correct Answer: The bridge is unbalanced.

Solution:

If the galvanometer shows a current, it indicates that the bridge is unbalanced.

In a Wheatstone bridge, if the galvanometer shows a current, which of the following statements is true?

In a Wheatstone bridge, if the galvanometer shows a current, which of the following statements is true?

Correct Answer: Bridge is unbalanced

Step 1: Understand what a Wheatstone bridge is. It is a circuit used to measure unknown resistances by balancing two legs of a bridge circuit.
Step 2: Know that a galvanometer is an instrument used to detect and measure small currents in the circuit.
Step 3: Recognize that in a balanced Wheatstone bridge, there is no current flowing through the galvanometer.
Step 4: If the galvanometer shows a current, it means that the two sides of the bridge are not equal in resistance.
Step 5: Conclude that the presence of current in the galvanometer indicates that the Wheatstone bridge is unbalanced.

Wheatstone Bridge – A circuit used to measure unknown electrical resistances by balancing two legs of a bridge circuit.
Galvanometer Function – A device that detects and measures small electric currents, indicating whether the bridge is balanced or unbalanced.
Balance Condition – In a balanced Wheatstone bridge, the current through the galvanometer is zero; an unbalanced condition shows a current.