Intensity of the light in the light bulb what physicist described it?

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Homework Help Overview

The discussion revolves around the relationship between electric current and the intensity of light in light bulbs, specifically seeking to identify the physicist who first proved this connection.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants explore the historical context of light bulb development and question the accuracy of the claim that intensity is proportional to current. Some express uncertainty about the original poster's intent and the nature of the inquiry.

Discussion Status

The discussion is ongoing, with participants providing insights into the historical understanding of light intensity and electric current. There is a mix of interpretations regarding the original question, and some participants are questioning the assumptions behind the inquiry.

Contextual Notes

Some participants express concern about whether the inquiry is appropriate for homework help, indicating potential constraints on the nature of the discussion.

m_p_w
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We know that the intensity of the light in the light bulb depends on the electric current.
And I want to know who was the first physicist who proved this.
And if there is a possibility could you also tell me how, why, when, where he did this experiment or give me an website, but the name of the physicist is also enough.

thank you
 
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m_p_w said:
We know that the intensity of the light in the light bulb depends on the electric current.
And I want to know who was the first physicist who proved this.
And if there is a possibility could you also tell me how, why, when, where he did this experiment or give me an website, but the name of the physicist is also enough.

thank you

The wikipedia entry has a history of the incandescent light bulb:

http://en.wikipedia.org/wiki/Incandescent_light_bulb

:smile:
 
I'm not sure what you mean by that. If you mean simply "generally the intensity of light is greater if there is more current passing through the bulb", the first people to make light bulbs, Edison among others, knew that! After all, it follow from "conservation of energy" which long predates the light bulb. If you mean "the intensity of the light is proportional to the current", that's simply not true.
 
so it has always been a common sense that "generally the intensity of light is greater if there is more current passing through the bulb"
 
m_p_w said:
so it has always been a common sense that "generally the intensity of light is greater if there is more current passing through the bulb"

Yep.
 
Are these schoolwork questions?
 

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