CURRENT ELECTRICITY | Wheatstone Bridge |Class 12 Physics | 6 PM By Abhinav Sir | L8 | Doubtnut

In the Wheatstone's bridge shown, P = 2 Omega, Q = 3 Omega, R = 6 Omega and S = 8 Omega . In order to obtain balance, shunt resistance across S must be

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Four resistances 3Omega, 6Omega, 4Omega , and 12Omega are connected so as to form Wheatstone's network. Shunt needed across 12Omega resistor to balance the bridge is

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.

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