The current in a 100 watt lightbulb is 0.85 A. The filament inside the bulb is 0.25

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The current in a 100 watt lightbulb is 0.85 A. The filament inside the bulb is 0.25 mm in diameter.
a. What is the current density in the filament?
b. What is the electron current in the filament?

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Physics for Scientists and Engineers A Strategic Approach with Modern Physics

ISBN: 978-0133942651

4th edition

Authors: Randall D. Knight

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Question Posted: Nov 02, 2018 11:11 AM

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The current in a 100 watt lightbulb is 0.85 A. The filament inside the bulb is 0.25

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Physics for Scientists and Engineers A Strategic Approach with Modern Physics

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