Does the Equation ΔE = qV Calculate Both Kinetic and Electrical Energy?

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SUMMARY

The equation ΔE = qV effectively calculates both kinetic and electrical energy when a charged particle is subjected to a potential difference. In this context, q represents the charge of the particle, and V is the potential difference, specifically noted as 100kV in the discussion. The work done by the electrical energy results in an increase in the particle's kinetic energy, confirming that the equation applies to both energy types under the condition of only electrostatic potential being present.

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  • Understanding of electrostatics and electric potential
  • Familiarity with kinetic energy concepts
  • Knowledge of the relationship between charge, voltage, and energy
  • Basic physics principles regarding work and energy transfer
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grscott_2000
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If I know the charge on a particle and I know that it has initial speed of zero and I also know that it is passed through a potential difference of 100kV, can I say that its change in kinetic energy is

deltaE = charge of particle(q) x potential difference(100kV)


Or is this equation just used for finding electrical energy?
 
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Both. The electrical energy does work on the particle, meaning its kinetic energy increases. So, yeah, it can be used as both (assuming there's only an electro-static potential and no other forces involved).
 

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