Is It Possible for the Electric Potential to Be Zero in a Multi-Charge Field?

  • Thread starter Thread starter Sasha
  • Start date Start date
  • Tags Tags
    Potential
AI Thread Summary
In a multi-charge electric field, the potential at a specific point can theoretically be zero, but it is typically defined in relation to a reference point, often taken as infinity. The potential difference is what can be calculated, not the absolute potential at a single point. Since potential at infinity is considered zero, all other potentials are measured against that reference. Therefore, while potential can be zero at infinity, it is not applicable within the field itself. The discussion emphasizes the importance of understanding potential difference rather than absolute potential values.
Sasha
Messages
4
Reaction score
0
Please! Help me! about potential

Can potential at any point of electric field produced with many charges be equal to zero?
 
Physics news on Phys.org
1. Please post on this forum sensibly. People will be help you no matter how many exclamation marks you use in the title.

2. Potential cannot be calculated at a point. Only a 'potential difference' between two points can be calculated. Generally, the potential at infinity is taken to be zero and all other calculations are made respect to that. Hence, potential at a point means the 'potential difference between that point and infinity'. Under this definition, potential is zero only at infinity.
 
but infinity is not in the field. it is abroad
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Trying to understand the logic behind adding vectors with an angle between them'
My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
Back
Top