7500*IR5 + 10000*IR4 + 0 = 12 V...........1 7500*IR5 +0+ 4300* = 11.3 V.........2 IR5 - IR4 - 0.005*IE = 0............ Solve the above equation to get the answer of IR5, IR4 AND IE below show the step by step solution to get the final answer below. IR5 = 0.69 MA IR4 = 0.683 mA IE = 1.425 mA.

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Sinusoids And Phasors

Sinusoids are defined as the mathematical waveforms that are used to describe the nature of periodic oscillations.

Circuit Theory

Electric circuits are a network that comprises of a closed-loop, which helps in providing a return path for the current through a switch. When the switch is activated, the load operates, and the current accepts a path to finish the circuit at a low potential level from the opposing high potential level. Electric circuits theory is a linear analysis that helps in establishing a linear relation of voltage and current for R (resistance), L (inductance), and C (capacitance).