Miike012
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Why Is the Current Negative in This Circuit Division Equation?
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Well, the current has to flow in the opposite direction as indicated.
ehild
ehild
Miike012
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ehild said:
Are there any general rules to follow because I'm sure most circuits won't be as obvious
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There are Kirchhoff's Laws.
The 2mA current of the current source flows out of the top junction, so the same current has to flow in through the resistors. The sum of the currents flowing in is equal to the sum of the outflowing currents according to Kirchhoff's Current Law. So the current flows upward through the 2 kΩ resistor.
ehild
The 2mA current of the current source flows out of the top junction, so the same current has to flow in through the resistors. The sum of the currents flowing in is equal to the sum of the outflowing currents according to Kirchhoff's Current Law. So the current flows upward through the 2 kΩ resistor.
ehild
