Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Gear Motor
A gear motor is a combination of a gearbox and an electric motor. This combination of two systems is used for efficient usage of the motor. It makes a cost-effective solution for high torque, low-speed applications. These motors are used in our household…
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An electricity power plant delivers energy at a rate of 20 MW to a city 1 km away. The common voltage output of commercial electricity generator is 22 kV. In order to reduce the power loss during transmission, a step-up transformer is used to boost the voltage to 230 kV before transmission. If the resistance of the transmission wires is 2 Ω and the electricity cost is about HK$1 per kWh, estimate the cost of electricity loss due to “joule heating” in the wires in one day.

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