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  4. The potential difference between A and B in the following figure is

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Q. The potential difference between $A$ and $B$ in the following figure isPhysics Question Image

KCETKCET 2008Current Electricity

Solution:

From the given circuit
$ V_A - (6 \times 2) - 12 - (9 \times 2) + 4 - (5 \times 2) = V_B $
or $ \, \, \, \, \, \, \, V_A - 12 - 12 - 18 + 4 - 10 = V_B $
or $ \, \, \, \, \, \, \, \, \, \, \, \, \, \, \, V_A - V_B = 48 \,volt $