Question 7.3 394Chapter 7 AC PowerHOMEWORK PROBLEMSSection 7.1: Power in AC Circuits7.1 The heating element in a soldering iron has aresistance of 30 2. Find the average power dissipatedin the soldering iron if it is connected to a voltagesource of 117 V rms.7.2 A coffeemaker has a rated power of 1,000 W at 240V ms. Find the resistance of the heating element.7.3 A current source i (t) is connected to a 50-2 resistor.Find the average power delivered to the resistor, giventhat i (t) isa. 5 cos 50t Ab. 5 cos(50t - 45°) Ac. 5 cos 50t - 2 cos(50t - 0.873) Ad. 5 cos 50t -2 A7.4 Find the rms value of each of the following periodiccurrents:a. cos 450t +2 cos 450tb. cos 5t + sin 5tc. cos 450t + 2d. cos 5t + cos(5t +/3)e. cos 200t + cos 400t7.5 A current of 4 A flows when a neon lightadvertisement is supplied by a 110-V ms powersystem. The current lags the voltage by 60°. Find thepower dissipated by the circuit and the power factor.7.6 A residential electric power monitoring system ratedfor 120-V rms, 60-Hz source registers powerconsumption of 1.2 kW, with a power factor of 0.8.Finda. The ms current.b. The phase angle.c. The system impedance.d. The system resistance.

This question belongs to circuit theory . It is based on power consumption across the resistor .…

7.3 A curent source i (t) is connected to a 50-2 resistor. Find the average power delivered to the resistor, given that i (t) is a. 5 cos 50t A b. 5 cos(50t – 45°) A c. 5 cos 50t – 2 cos(50t - 0.873) A d. 5 cos 50t - 2 A

7.3 A curent source i (t) is connected to a 50-2 resistor. Find the average power delivered to the resistor, given that i (t) is a. 5 cos 50t A b. 5 cos(50t – 45°) A c. 5 cos 50t – 2 cos(50t - 0.873) A d. 5 cos 50t - 2 A

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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