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Figure shows a balanced Wheatstone's bri...

Figure shows a balanced Wheatstone's bridge

(1) If P is slightly increased, the current in the galvanometer flow from A to C.
(2) If P is slightly increased, the current in the galvanometer flows C to A.
(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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