In a Wheatstone bridge, if the galvanometer shows zero deflection, what can be i

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Question: In a Wheatstone bridge, if the galvanometer shows zero deflection, what can be inferred about the current?

Options:

Correct Answer: No current flows

Solution:

Zero deflection indicates that no current flows through the galvanometer.

In a Wheatstone bridge, if the galvanometer shows zero deflection, what can be inferred about the current?

In a Wheatstone bridge, if the galvanometer shows zero deflection, what can be inferred about the current?

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 current flow in the circuit.
Step 3: When the galvanometer shows zero deflection, it means the needle is not moving.
Step 4: If the needle is not moving, it indicates that there is no current flowing through the galvanometer.
Step 5: Therefore, we can conclude that zero deflection means no current is flowing.

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, showing deflection proportional to current flow.
Zero Deflection – Indicates that the potential difference across the galvanometer is zero, meaning no current flows through it.