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Consider the circuit shown below. Find the current I1.(a) 3.3(b) 4.3(c) 5.3(d) 6.3I got this question in a national level competition.I would like to ask this question from Mesh Analysis topic in section Methods of Analyzing Circuits of Network Theory

Answer»

The correct ANSWER is (B) 4.3

The best I can explain: According to mesh analysis, (1+3+6)I1 – 3(I2) – 6(I3) = 10

-3(I1) + (2+5+3)I2 = 4 -6(I1) + 10(I3) = -4 +20 On solving the above EQUATIONS, I1=4.3A.



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