Figure shows a balanced Wheatstone bridge. (1) If \( P \) is slightly increased, the current in ...

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Figure shows a balanced Wheatstone bridge.
(1) If \( P \) is slightly increased, the current in the galvanometer flows from \( C \) to \( A \).
(2) If \( P \) is slightly increased, the current in the galvanometer flows from \( A \) to \( C \).
(3) If \( Q \) is slightly increased, the current in the galvanometer flows from \( C \) to \( A \).
(4) If \( Q \) is slightly increased, the current in the galvanometer flows from \( A \) to \( C \).
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