Voltage on a electrostatic charged sphere

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Discussion Overview

The discussion revolves around the concept of voltage in relation to an electrostatically charged sphere and the effects of connecting a metal box to it. Participants explore the implications of voltage measurements and the generation of static charge through battery connections.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests that voltage for a charged sphere can be calculated using the formula q*k / r, questioning if a connected metal box would maintain the sphere's voltage of 100kV.
  • Another participant asks for clarification on the reference point for the 100kV measurement and the relative positioning of the box to the sphere, expressing uncertainty about what is being measured.
  • A third participant introduces the idea that applying voltage from a battery to a metallic object could potentially produce static charge, although they note that the charge would be minimal when using batteries.
  • A later reply confirms the possibility of generating static charge from a battery but advises the original poster to start a new thread for unrelated questions.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the implications of connecting the metal box to the charged sphere, and there are multiple competing views regarding the measurement of voltage and the generation of static charge.

Contextual Notes

The discussion includes assumptions about the reference points for voltage measurements and the conditions under which static charge may be generated, which remain unresolved.

abdo799
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I understand that voltage depends on how far the electrons are, so for a sphere it would be q*k / r.
But what if a sphere with 100kv , then we put with contact to it a metal box , becoming on body, will the volt remain 100kv
 
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100kV relative to what?
What is the position of the box relative to the sphere?

I guess no, but for me it is not clear what you want to measure.
 
Hello people... Charged body has an voltage.. But the reverse...can applying voltage to a metallic object from a battery who's other terminal is grounded produce static charge on that metallic object??
 
Yes (but the charge will be tiny with batteries).

Please start a new thread for your own questions.
 

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