When is a Wheatstone bridge said to be in a b | vedclass

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(B) Wheatstone bridge consists of four resistors $P, Q, R,$ and $S$ arranged in a diamond shape with a galvanometer connected between the two opposite

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When no current flows through the galvanometer.

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(B) Wheatstone bridge consists of four resistors $P, Q, R,$ and $S$ arranged in a diamond shape with a galvanometer connected between the two opposite junctions.The bridge is said to be in a balanced condition when the potential difference between the two points where the galvanometer is connected is zero.As a result,no current flows through the galvanometer $(I_g = 0)$.In this state,the ratio of the resistances in the adjacent arms is equal,which is expressed as $\frac{P}{Q} = \frac{R}{S}$.

When is a Wheatstone bridge said to be in a balanced condition?

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