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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Cells A and B and a galvanometer G are connected to a side wire OS by two sliding contacts C and D as shows in Fig. 6.17. The slide wire is 100cm long and has a resistance of 12Ω. With OD=75cm, the galvanometer gives no deflections when OC is 50cm. If D is moved to touch the end of wire S, the value of OC for which the galvanometer shows no deflection is 62.5cm. The emf of cell B is 1.0V. Calculate (i) the potential difference across O and D when D is at 75cm mark from O (ii) the potential difference across OS when D touches S (iii) internal resistance of cell A (iv) the emf of cell A

Cells A and B and a galvanometer G are connected to a side wire OS by two sliding contacts C and D as shows in Fig. 6.17. The slide wire is 100cm long and has a resistance of 12Ω. With OD=75cm, the galvanometer gives no deflections when OC is 50cm. If D is moved to touch the end of wire S, the value of OC for which the galvanometer shows no deflection is 62.5cm. The emf of cell B is 1.0V. Calculate (i) the potential difference across O and D when D is at 75cm mark from O (ii) the potential difference across OS when D touches S (iii) internal resistance of cell A (iv) the emf of cell A

Cells A and B and a galvanometer G are connected to a side wire OS by two sliding contacts C and D as shows in Fig. 6.17. The slide wire is 100cm long and has a resistance of 12Ω. With OD=75cm In the simple potentionmeter circuit respectively. When X is shunted by a wire the balance point is found to be 0.625 m from A. What is the resistance of the shunt? the galvanometer gives no deflections when OC is 50cm. If D is moved to touch the end of wire S the resistors X and Y have values of 5Ω and 2Ω where the length AB of the potentiometer wire is 1 m