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Find the current in 5Ω resistor near 12V source using superposition principle in network given(a) 2.9A(b) -2.9A(c) 1A(d) -1AI got this question in a national level competition.The origin of the question is Maximum Power Transfer and Superposition in division Techniques of Circuit Analysis of Electric Circuits

Answer»

Right option is (b) -2.9A

For EXPLANATION I would say: Only 3 sources are CONSIDERED (12V, 10A, 20V), other is dependent (10I).

 12v source: I=0.6A

10A source: I=-2.5A through 5Ω resistor and I=7.5A

20v source: I=-1A

Total CURRENT = 0.6+ (-2.5) + (-1) = -2.9A.



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