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Will a lamp with a thick filament draw more current or

Chapter 15, Problem 79TAE

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QUESTION:

Will a lamp with a thick filament draw more current or less current than a lamp with a thin filament?

Questions & Answers

QUESTION:

Will a lamp with a thick filament draw more current or less current than a lamp with a thin filament?

ANSWER:

Step 1 of 2

The resistance of a filament in terms of cross sectional area is given by:

Where

 is resistance

 is resistivity

 is the cross sectional area.

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