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Find the value of V1 if the current through the 1 ohm resistor=0A.

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in Basic Electrical Engineering by (88.7k points)
Find the value of V1 if the current through the 1 ohm resistor=0A.

(a) 83.33V

(b) 78.89V

(c) 87.87V

(d) 33.33V

The question was posed to me in quiz.

I want to ask this question from Mesh Analysis in section Network Theorems of Basic Electrical Engineering

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Best answer
Right choice is (a) 83.33V

The best explanation: Taking I1, I2 and I3 as the currents in the three meshes and taking I3=0 since it is the current across the 1 ohm resistor, the three mesh equations are:

15I1-5I2=V1

-5I1+10I2=0

3I2=10

Solving these equations simultaneously we get V1= 83.33V.

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