(a) A lightbulb has a resistance of 255 N when operating with a potential difference of 170 V across it. What is the current in the lightbulb (in mA)?mA(b) What If? What would be the current in the lightbulb (in mA) if it were used in Nigeria, where the potential difference across it would be 240 V?mA

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(a) A lightbulb has a resistance of 255 2 when operating with a potential difference of 170 V across it. What is the current in the lightbulb (in mA)? (b) What If? What would be the current in the lightbulb (in mA) if it were used in Nigeria, where the potential difference across it would be 240 V?

(a) A lightbulb has a resistance of 255 2 when operating with a potential difference of 170 V across it. What is the current in the lightbulb (in mA)? (b) What If? What would be the current in the lightbulb (in mA) if it were used in Nigeria, where the potential difference across it would be 240 V?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 67PQ

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Question

(a) A lightbulb has a resistance of 255 N when operating with a potential difference of 170 V across it. What is the current in the lightbulb (in mA)?
mA
(b) What If? What would be the current in the lightbulb (in mA) if it were used in Nigeria, where the potential difference across it would be 240 V?
mA

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