Answered: Charging a cellular phone for 2 hours…

Charging a cellular phone for 2 hours usually requires 1,080 Joules. What is the power rating of the phone? A. 2.16kw B. 0.15 w C. 540 w D. 1.85 mw what is the

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 93A

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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

Charging a cellular phone for 2 hours usually requires 1,080 Joules. What is the power rating of the phone?

A. 2.16kw

B. 0.15 w

C. 540 w

D. 1.85 mw

what is the letter of the answeR?

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