What is the voltage V across R1 20 ohm resistor? Using super position theorem

What is the voltage V of the designed circuit? Using super position theorem. When i active the 9V source & short 12 V source as well as open the current source I1 (3A) is the voltage follows in 20 ohms(R1), 10 ohms(R3). & 4 ohms(R4)? Or it only flows to 4 ohms?

by Tatiana199019
October 29, 2018

1 Answer

Answer by mikerogerswsm

V2 has no effect.

V1 causes -6V to appear across R1

I1 causes +20V to appear across R1

Total +20V -6V = +14V

+1 vote
by mikerogerswsm
October 29, 2018

How v2 has no effect? If V1 can effect Then why V2 not? The current then also passes through R1

by Tatiana199019
October 30, 2018

When you are looking at the effect of V2, you have to consider V1 to be shorted. If it is a short then no current can get from V2 to R1.

by mikerogerswsm
October 30, 2018

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