Solve this: 24 In the given figure, if galvanometer shows null deflection then emf of each cell - Physics - Current Electricity

Question

Solve this:

24 In the given figure, if galvanometer shows null deflection
then emf of each cell will be [Total length of wire is 10 m and
resistance is 9 Ω ]

(1) 9 V (2) 0 9 V
(3) 4 5 V (4) 1 8 V

Shobhit Mittal · Accepted Answer

Dear Student,when it is balanced current through wirei=59+1=0
5 Avoltage drop across the point A and the jockey is the emf of the batteryE=910*2*0
5=0 9 VRegards

Solve this: 24. In the given figure, if galvanometer shows null deflection then emf of each cell will be [Total length of wire is 10 m and resistance is 9 Ω ] (1) 9 V (2) 0.9 V (3) 4.5 V (4) 1.8 V

Solve this:

24. In the given figure, if galvanometer shows null deflection then emf of each cell will be [Total length of wire is 10 m and resistance is 9 $Ω$ ]

(1) 9 V (2) 0.9 V
(3) 4.5 V (4) 1.8 V