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Given simple graphs of current versus power and voltage versus power, determine the value of circuit power for a given current and voltage. Identify the term power, and state three formulas for computing power. Compute circuit and component power in series, parallel, and combination circuits.
27 Μαρ 2018 · This book covers Direct Current (DC) circuit theory and is broken up into three modules. Module 1 covers the basics for circuits that include DC sources (voltage or current) and resistors.
1.1. the voltage source is delivering power to. Independent voltage source. the circuit and if the current is entering into the positive terminal, it absorbs power. For an ideal voltage source, there is no limit to the power it can deliver or absorb.
It provides clear and concise physics approach to understanding circuit components and the analysis of DC circuits. The physics approach is complemented with excellent explanations and examples of practical devices that go beyond just resistors, capacitors, inductors and dependent sources.
From Ohm’s law, there are three equivalent expressions for the power dissipation in a circuit: P = VI , P = V2 R, P = I2R Exercise 1. I R V (a) In the circuit if R = 6Ω and I = 3A, what is the power? (b) In the circuit if V = 8V and R = 2Ω, what is the power? (c) Finally, what is the power if V = 8V and I = 0.25A?
The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors, and generators; AC power and reactive components; batteries; AC and DC voltage regulators; transformers; and electrical test instruments and measuring devices.
Read about Basic DC Circuit Theory (Chapter 1 - Voltage, Current, Energy, and Power) in our free Power Electronics Textbook
