Q)
(chatquestion)...( Left side of circuit (fig.a) :- two 40 connected in
parallel gives 20. This 20 and another 20 are in series.
hence net equivalent resistance is 40)
(Right side of circuit (fig.b) :- three 30 resistance in
parallel which is equivalent to 10)
current in the circuit = (13-6)/(1+4+2) = 1 A .
%3D
Let Vx and VA be the potential at X and A respectively.
Then Vx - VA = -6-(4×1) = -10 V. Hence Vx = -10 V
because VA = 0 V( earth)
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