A 20-V storage battery delivers current at the rate of 53 A. In a 28-min period, the heat lost from the battery is 103.07 kJ. What is the change in internal energy in kJ of the battery for the discharging period? answer must be in 3 decimal places

A 20-V storage battery delivers current at the rate of 53 A. In a 28-min period, the heat lost from the battery is 103.07 kJ. What is the change in internal energy in kJ of the battery for the discharging period? answer must be in 3 decimal places

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 73A

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

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