Consider the electrical
circuit shown above. It consists of two identical ideal batteries,
V1 = V2 = 24 V, and five resistors.
1)
Which of the following equations is not valid?
I2= I1 + I3
I2R2 + I3R3 + V2 = 0
I1R1 + I2R2 - V1 = 0
2)
Suppose the resistor R3 is shorted out, so that it acts like a wire. What can we say about the current labelled I1?
I1 is positive.
I1 is negative.
I1 is zero.
Homework Answers
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