In a two-source circuit, one source acting alone produces 10 ma through a given branch. the other source acting alone produces 8 ma in the opposite direction through the same branch. the actual current through the branch is
Case 1: The voltage source is Vā and the current is 10 mA. Therefore Vā = (10 mA)R
Case 2: The voltageĀ source is Vā and the current is 8 mA. Therefore Vā = (8 mA)R
Case 3: The voltage across the resistance is Vā - Vā. Therefore the current I is given by Vā - Vā = IR 10R - 8R = (I mA)R 2 = I The current is 2 mA.
