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Consider the following figure. Find the current I3 (A).(a) 4(b) 4.7(c) 5(d) 5.7The question was asked in quiz.This intriguing question comes from Mesh Analysis topic in chapter Methods of Analyzing Circuits of Network Theory

Answer»

The CORRECT answer is (b) 4.7

Explanation: 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, I3 = 4.7A.



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