The energy stored in a system of capacitors (only)

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SUMMARY

When a charged capacitor is connected to an uncharged capacitor, they will attain the same voltage, but the initial and final energy levels differ due to energy redistribution. The formulas used, such as q=CV and U=c*v^2/2, indicate that energy is not conserved in the way one might initially expect. The discrepancy arises from the fact that energy is lost in the form of heat during the redistribution process, which is often overlooked in calculations.

PREREQUISITES
  • Understanding of capacitor basics, including charge (q), voltage (V), and capacitance (C).
  • Familiarity with energy equations for capacitors, specifically U=c*v^2/2.
  • Knowledge of energy conservation principles in electrical systems.
  • Ability to perform algebraic manipulations to solve equations involving capacitors.
NEXT STEPS
  • Study the concept of energy loss in electrical systems, particularly in capacitor circuits.
  • Learn about the implications of connecting capacitors in series and parallel configurations.
  • Explore the role of resistance in capacitor discharge and energy dissipation.
  • Investigate advanced capacitor applications, such as in filtering and energy storage systems.
USEFUL FOR

Students studying electrical engineering, physics enthusiasts, and professionals working with capacitor circuits who seek to deepen their understanding of energy dynamics in capacitor systems.

Roxas ross
1.when a charged capacitor is connected to an uncharged capacitor will they attain the same voltage ?the initial and final energy are different why is this so?2.q=CV,U=c*v*v/23. I tried to equate the initial and final energy of system of capacitors but the answer does not match.what is the mistake in doing so?
 
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Hi Roxas Ross,

Please keep the template headers intact when you create your homework help request posts; don't delete the headers.

Roxas ross said:
I tried to equate the initial and final energy of system of capacitors but the answer does not match.what is the mistake in doing so?
The problem statement says that they will be different. Are you saying that you found them to be the same? Can you show your attempt in more detail?
 

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