NEET Physics Wheatstone Bridge MCQ Question
In a Wheatstone bridge circuit, which of the following statements is correct regarding the current and resistance relationships?
When the bridge is balanced, the ratio of resistances satisfies R1/R2 = R3/R4.
The total current flowing through the galvanometer is equal to the sum of currents in the other branches.
The balance condition can only be achieved if all resistances are equal.
The current through the galvanometer is non-zero when the bridge is balanced.
Correct Answer
Detailed Explanation
According to the balance condition of a Wheatstone bridge, the relationship R1/R2 = R3/R4 must hold true for the galvanometer to show zero deflection, indicating a balanced state. This aligns with the principles discussed in the NCERT context.
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