-1. For the circuit shown in Fig. P2.1, the power P delivered by the voltage source Vs is given by the quadratic equation P = I2R + VI, where I is in amps and V is in volts.Suppose that P = 100 W, V = 90 V, and R = 10 Ω. Show that the current I satisfies the quadratic equation: I2 + 9I − 10 = 0.Solve the above quadratic equation for I by each of the following methods: factoring, completing the square, and the quadratic formula.

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Answered: 1. For the circuit shown in Fig. P2.1,…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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-1. For the circuit shown in Fig. P2.1, the power P delivered by the voltage source V_s is given by the quadratic equation P = I²R + VI, where I is in amps and V is in volts.

Suppose that P = 100 W, V = 90 V, and R = 10 Ω. Show that the current I satisfies the quadratic equation: I² + 9I − 10 = 0.
Solve the above quadratic equation for I by each of the following methods: factoring, completing the square, and the quadratic formula.

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