20. Find the potential of point P. 30 V +C 10 v 10 V (1) 15 V (3) 10 V 20v 20 V (2) 60 V (4) 20 V W

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(10) Apply nodal [ begin{aligned} & frac{p-30}{c}+frac{p-10}{c}+frac{p-20}{c}=0 & Rightarrow P-30+p-10+p-20=0 & Rightarrow 3 P=60 quad Rightarrow sqrt{P=20} end{aligned} ]

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