Why Is Earth's Potential Set to Zero?

AI Thread Summary
Earth's electrical potential is set to zero primarily for convenience in calculations and measurements. This reference point simplifies the analysis of electrical systems and allows for consistent comparisons. The discussion touches on the relevance of this concept in relation to gravity, particularly at sea level. The topic highlights the importance of establishing reference points in physics and engineering. Understanding this foundational principle aids in various scientific and practical applications.
samieee
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Hi all
I want to know that why Earth potential is set to zero? what is the reason?
 
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samieee said:
Hi all
I want to know that why Earth potential is set to zero? what is the reason?
Because it is convenient to do so.
 
samieee said:
Hi all
I want to know that why Earth potential is set to zero? what is the reason?
Hello samieee
In what expertise? Do you mean gravity and if so at sealevel?
greetings Janm
 

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
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