Energy dissipation in inductor and capacitor

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Discussion Overview

The discussion centers on the concept of energy dissipation in inductors and capacitors, exploring the differences between energy dissipation and energy consumption, as well as the behavior of these components in steady-state conditions. Participants seek clarification on how energy is stored and dissipated in these elements within electrical circuits.

Discussion Character

  • Conceptual clarification
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants question whether energy dissipation and energy consumption are the same, with one suggesting that dissipation refers to heat loss, while consumption is a purposeful use of energy.
  • It is noted that in a circuit with inductance, capacitance, and resistance, only resistance dissipates energy as heat, while ideal inductors and capacitors can store energy without dissipation.
  • One participant expresses confusion regarding the difference between energy dissipation and energy storage in inductors and capacitors, particularly in steady-state conditions where energy dissipation is claimed to be zero.
  • Another participant clarifies that energy is dissipated as heat when current flows through resistance, and that in steady-state, inductors and capacitors can store energy that can be recovered when the circuit is taken out of steady-state.

Areas of Agreement / Disagreement

Participants express differing views on the definitions and implications of energy dissipation versus energy storage, with no consensus reached on the clarity of these concepts in steady-state conditions.

Contextual Notes

There are unresolved questions regarding the definitions of energy dissipation and energy storage, as well as the implications of steady-state behavior in inductors and capacitors. Some assumptions about ideal versus practical components are also not fully explored.

ranju
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I want to know the meaning of energy dissipation...is eergy dissipation and energy consumption are same things?? inductor and capacitor store energy which can be used later... what is then energy dissipated?? is it the heat loss in these elements?? I mean..heat loss is what we say energy dissipation??
 
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Dissipation includes any kind of loss; heat loss is a common form of dissipation.

Energy consumption is a purposeful use of energy; dissipation is not ordinarily considered useful.
 
ranju said:
I want to know the meaning of energy dissipation...is eergy dissipation and energy consumption are same things?? inductor and capacitor store energy which can be used later... what is then energy dissipated?? is it the heat loss in these elements?? I mean..heat loss is what we say energy dissipation??
In a circuit comprising inductance, capacitance, and resistance, only the resistance dissipates energy, and it's in the resistance where electrical energy turns into heat.

The ideal inductor and capacitor can temporarily store electrical energy but they return it to the circuit. Practical L and C do incur losses in their resistance.
 
In that case..what's the difference between energy dissipation and energy storage fr an inductor and capacitor..
Basically my doubt is regarding the steady state of inductor & capacitor..in steady state the energy disssipated is zero for both but stored energy has certain value as its due to magnetic & electric fields...
If these both are'nt in steady stae thn how the energy will be dissipated.>??
Then , in steady state... the energy stored in the inductor & capacitor will be utilised..??
Its really very confusing..pleasez explain as clearly as possible..!
 
Energy is dissipated as heat when current flows in any resistance, instantaneous power p(t) = i2(t).R

Thus, electrical energy is lost from the circuit as heat.

In the steady state, L and C can be storing energy. It can be recovered from them but only by taking the circuit out of its steady-state.
 
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