Wheaststone bridge is most sensitive when the resistance of all four arms are

[Tick the correct option]Wheatstone bridges is most sensitive, when resistances in four ration arms are of

Wheatstone bridge is most sensitive when the arms ratio is

When is Wheatstone bridge most sensitive ?

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.