Balanced Wheatstone Bridge

Which are coorect statement ? (1) The Wheatstone bridge is most sensitive when all the four resistances are of the same order (2) Kirchhoffs first law (for currents meeting at a junction in an electric circuit) expresses the conservation of charge. (3) The rheostat can be used as a potential divider. (4) In a balanced Wheatstone bridge, interchanging the positions of galvanometer and cell affects the balance of the bridge.

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.

Temperature and resistance, Wheatstone Bridge and Meter Bridge

Circuits Based On Wheatstone Bridge

Color coding of resistors, Temperature and resistance, Wheatstone Bridge and Meter Bridge

Extended Wheatstone Bridge

Stretching OF Wire and Change in Resistance||Wheatstone Bridge Example||Ladder Equivalent Resistance||Extended Wheatstone Bridge