Electrical – Direction of the current in the circuit

circuit analysiscurrent

I am a beginner in the electronics so please bear with me for this question. You can see two Voltage sources (V1 and V2) and one Current source (I3).
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When we start solving the circut, we replace the Current source (I3) with the Voltage source (V3) and we draw three currents going clockwise. But, shouldn't the last current (Iiii) go counterclockwise? Thank you!

Best Answer

But, shouldn't the last current (Iiii) go counterclockwise or it is optional?

If you drew the current one way and the result (after calculation) was a negative current then you know the arrow you drew was the wrong direction. It's a self-revealing thing and nothing to worry about.

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