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Stu wanted to calculate the resistance of a light bulb connected to a 4.0-V battery, with a resulting current of 0.5 A. He used the formula R = VI and obtained an answer of 2 . Was Stu's answer correct?
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5 votes
Stu wanted to calculate the resistance of a light bulb

connected to a 4.0-V battery, with a resulting current of
0.5 A. He used the formula R = VI and obtained an
answer of 2 . Was Stu's answer correct? How do you
know?

User Asdacap
by
3.5k points

2 Answers

4 votes

Answer:

yes

Step-by-step explanation:

He used the formula R = VI and obtained an

answer of 2

User Miff
by
3.4k points
4 votes

Answer:

Stu's answer was incorrect. According to Ohm's law, R = V/I. This is the equation that should be used to obtain the correct answer, which is 8 ohms.

Step-by-step explanation:

User AndyL
by
3.6k points
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