(a) Use Thevenin's theorem to find i (current on the 8 ohm) in the circuit and draw Thevenin's equivalent circuit. (b) Find the power supplied by the independent current source. (c) Find the total power dissipated in the three resistors. 12 A 28 2. 40 www www 80

(a) Use Thevenin's theorem to find i (current on the 8 ohm) in the circuit and draw Thevenin's equivalent circuit. (b) Find the power supplied by the independent current source. (c) Find the total power dissipated in the three resistors. 12 A 28 2. 40 www www 80

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter22: Resistive-capacitive Parallel Circuits

Section: Chapter Questions

Problem 4RQ: What is the power factor of the circuit in Question 2?

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Concept explainers

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.

Question

(a) Use Thevenin's theorem to find i (current on the 8 ohm) in the circuit
and draw Thevenin's equivalent circuit.
(b) Find the power supplied by the independent current source.
(c) Find the total power dissipated in the three resistors.
12 A
www
28 2.
49
www
www
802

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Step 2: a. Thevenin's equivalent circuit :

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Step 3: B. calculation of powers :

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Step 4: power dissipated in the resistors :

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