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Problem 13 Find is the resistance of a 29-m-long piece of 18-gauge copper wire having 1.024-mm diameter.

Problem 13 Find is the resistance of a 29-m-long piece of 18-gauge copper wire having 1.024-mm diameter.

Introductory Circuit Analysis (13th Edition)
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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need problem number 13

Problem 11 A ferromagnetic ring has a uniform cross-sectional area of 2000 mm² and a mean circumference of 1000 mm. A hysteresis loop obtained for the specimen is plotted to scales of 10 mm = 0.1 T and 10 mm = 400A/m and is found to have an area of 104 mm². Determine the hysteresis loss at a frequency of 80 Hz. Problem 12 In an LR-C network, the capacitance is 10.61 nF, the bandwidth is 500 Hz, and the resonant frequency is 150 kHz. Determine for the circuit the Q-factor, the dynamic resistance, and the magnitude of the impedance when the supply frequency is 0.4% greater than the tuned frequency. Problem 13 Find is the resistance of a 29-m-long piece of 18-gauge copper wire having a 1.024-mm diameter. Problem 14 Consider a Darlington amplifier. In the self-bias network, the biasing resistances are 220k ohms and 400 ohms. What can be the correct input resistance value if hfe = 50 and emitter resistance = 10 ohms?
Transcribed Image Text:Problem 11 A ferromagnetic ring has a uniform cross-sectional area of 2000 mm² and a mean circumference of 1000 mm. A hysteresis loop obtained for the specimen is plotted to scales of 10 mm = 0.1 T and 10 mm = 400A/m and is found to have an area of 104 mm². Determine the hysteresis loss at a frequency of 80 Hz. Problem 12 In an LR-C network, the capacitance is 10.61 nF, the bandwidth is 500 Hz, and the resonant frequency is 150 kHz. Determine for the circuit the Q-factor, the dynamic resistance, and the magnitude of the impedance when the supply frequency is 0.4% greater than the tuned frequency. Problem 13 Find is the resistance of a 29-m-long piece of 18-gauge copper wire having a 1.024-mm diameter. Problem 14 Consider a Darlington amplifier. In the self-bias network, the biasing resistances are 220k ohms and 400 ohms. What can be the correct input resistance value if hfe = 50 and emitter resistance = 10 ohms?
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