The current in a 100 watt lightbulb is 0790a the filament


The current in a 100 watt lightbulb is 0.790A . The filament inside the bulb is 0.200mm 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: The current in a 100 watt lightbulb is 0790a the filament
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