When a light bulb is connected across the terminals of a battery, the battery delivers 21.1 W of power to the bulb. A voltage of 10.7 V exists between the terminals of the battery, which has an internal resistance of 0.475S2. What is the emf of the battery? Number Units

When a light bulb is connected across the terminals of a battery, the battery delivers 21.1 W of power to the bulb. A voltage of 10.7 V exists between the terminals of the battery, which has an internal resistance of 0.475S2. What is the emf of the battery? Number Units

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter22: Electric Current

Section22.1: Current And Circuits

Problem 3PP

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Chapter 20, Problem 075
When a light bulb is connected across the terminals of a battery, the battery delivers 21.1 W of power to the bulb. A voltage of 10.7 V exists between the terminals of the battery,
which has an internal resistance of 0.475N. What is the emf of the battery?
Number
Units

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