NEET Physics Wheatstone Bridge MCQ Question
In a Wheatstone Bridge setup, which of the following statements are correct regarding the relationship between the currents and resistances when the bridge is balanced?
The current through the galvanometer is zero.
The ratio of the resistances in one branch equals the ratio in the other branch.
The potential difference across the galvanometer is maximum.
The currents in the arms of the bridge are equal to the resistances in the opposite arms.
Correct Answer
Detailed Explanation
When the Wheatstone Bridge is balanced, the current through the galvanometer is zero, indicating no potential difference across it. The balance condition states that the ratio of the resistances must be equal, which prevents current from flowing through the galvanometer.
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