The internal resistance of a 1 35 V mercury cell is 0 030 , whereas that of a 1 5 V dry cell is 0 35 Explain why three mercury cells can more effectively power a 2 5 W hearing aid that requires 4 0 V than can three dry cells ...

Divide the power by the required voltage to determine the current drawn ...

The internal resistance of a 1.35-V mercury cell is 0.030 , whereas that of a 1.5-V dry

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The internal resistance of a 1.35-V mercury cell is 0.030 Ω, whereas that of a 1.5-V dry cell is 0.35 Ω. Explain why three mercury cells can more effectively power a 2.5-W hearing aid that requires 4.0 V than can three dry cells.

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Physics Principles with Applications

ISBN: 978-0321762429

7th edition

Authors: Douglas C. Giancoli

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Question Posted: Oct 05, 2017 08:28 AM

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The internal resistance of a 1.35-V mercury cell is 0.030 , whereas that of a 1.5-V dry

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Physics Principles with Applications

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