A static electric device works at 240 V uses a current of 0.64 A connected to a 20 V,70 W computer identify the static electric machine and evaluate the preferable current used by the computer. If we want to increase the load power to 80W, how much source current is required. Is this device works in dc? Justify.

A static electric device works at 240 V uses a current of 0.64 A connected to a 20 V,70 W computer identify the static electric machine and evaluate the preferable current used by the computer. If we want to increase the load power to 80W, how much source current is required. Is this device works in dc? Justify.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter22: Electric Current

Section: Chapter Questions

Problem 98A

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