2. A light bulb in a battery-powered desk lamp has a current of 0.042 A and is connected to a 9.2 V battery. What is the resistance in the desk lamp?

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asked Aug 19, 2022 206k views

2 votes

2. A light bulb in a battery-powered desk lamp has a current of 0.042 A and is connected to a

9.2 V battery. What is the resistance in the desk lamp?

Physics
high-school

Vasily A asked

by Vasily A

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Potential Difference=9.2V
Current=I=0.042A
Resistance=R

Using ohms law

$\\ \sf\longmapsto R=(V)/(I)$

$\\ \sf\longmapsto R=(9.2)/(0.042)$

$\\ \sf\longmapsto R=219.04\Omega$

Jsantell answered Aug 24, 2022

by Jsantell

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