Calculate the short circuit current is the 5 ohm resistor is the load resistance.(a) 0.72A(b) 0.32A(c) 0.83A(d) 0.67AI had been asked this question in an online quiz.I'd like to ask this question from Norton’s Theorem in portion Network Theorems of Basic Electrical Engineering

Calculate the short circuit current is the 5 ohm resistor is the load

1.	Calculate the short circuit current is the 5 ohm resistor is the load resistance.(a) 0.72A(b) 0.32A(c) 0.83A(d) 0.67AI had been asked this question in an online quiz.I'd like to ask this question from Norton’s Theorem in portion Network Theorems of Basic Electrical Engineering
Answer» The correct answer is (a) 0.72A The best I can explain: Since the 5 ohm is the LOAD resistance, we SHORT it and find the resistance through the short. If we apply SOURCE transformation between the 6 ohm resistor and the 1A source, we get a 6V source in series with a 6 ohm resistor. Now we have two meshes. Let us consider I1 flowing in the FIRST mesh and I2 flowing in the second mesh. The mesh equations are: 9I1-6I2=4 -6I1+16I2=6 On solving these equations simultaneously, we get I2=0.72A, which is the short circuit current.

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