Exercise 1: Refer to the Figure 3 below, determine the (a) voltage across 2º, b) voltage across 7º, and (c) voltage across 60. 1 A 1 6Ω ww 292 792 Ans: (a) -2V (b)-14V (c) 12V 3 Figure 3. 2 4 A

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Q: 1. If R(eq)=50 Ω in the circuit, find R. Req 30 Ω wwww 10 Ω 60 Ω www 12 Ω wwwwwww R 12 Ω 12 Ω

A: This is a problem of circuit. The detailed solution is given in the next step

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Q: R1 www VSupply R3 R2

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Thevenin Theorem

Any linear circuit, no matter how complex, maybe simplified to an equivalent circuit utilizing only a single voltage source and series resistance coupled to a load, according to Thevenin's Theorem. The superposition principle says that all foundational equations must be linear, and the notion of "linear" is still the same (i.e., there should not be any exponentials or roots). This is particularly the case when operating with passive elements like resistors, inductors, and capacitors. However, some components (particularly some gaseous and semiconductor devices like tunnel diode, Schottky diode, transistors like BJT, MOSFET) are nonlinear, meaning their current resistance fluctuates with voltage and current. As a result, circuits made up of these parts are known as nonlinear circuits.