Discussion Overview
The discussion revolves around the calculation of the time required for a capacitor to charge and discharge, focusing on the role of voltage (V) in these calculations and the use of the 5τ approximation. Participants explore the implications of these concepts in the context of capacitor behavior.
Discussion Character
- Exploratory
- Debate/contested
- Mathematical reasoning
Main Points Raised
- One participant questions the necessity of voltage (V) in the calculations, suggesting their work may be incorrect if V is not used.
- Another participant states that it takes an infinite amount of time to fully charge or discharge a capacitor, referencing the nature of the exponential function.
- Some participants mention the 5τ approximation, indicating it is used to define a practical criterion for "fully" charging or discharging a capacitor, which they suggest corresponds to approximately 99% completion.
- There is a suggestion that as long as the criterion for "fully" is defined as a percentage of V, voltage may not be necessary for the calculations.
Areas of Agreement / Disagreement
Participants express differing views on the necessity of voltage in the calculations, with some arguing it is essential while others suggest it may not be needed under certain conditions. The discussion remains unresolved regarding the role of V and the interpretation of "fully" charging or discharging a capacitor.
Contextual Notes
There is a lack of consensus on the definitions and assumptions regarding the criteria for "fully" charging or discharging a capacitor, as well as the implications of using the 5τ approximation.
