Help on Question: I'm Lost - Need Assistance

Thread starter jandali
Start date Nov 4, 2007

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SUMMARY

The discussion centers on understanding capacitor behavior in electrical circuits, specifically regarding voltage changes when a switch is activated. Participants emphasize the importance of knowing the voltage across the capacitor before and immediately after the switch is thrown. The consensus is that the voltage across the capacitor remains constant just before the switch is thrown and drops to zero instantaneously upon switching, assuming an ideal scenario without resistance.

PREREQUISITES

Basic understanding of electrical circuits
Knowledge of capacitor charging and discharging principles
Familiarity with Ohm's Law
Concept of instantaneous voltage changes in circuits

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Electrical engineering students, hobbyists working with circuits, and anyone seeking to understand capacitor dynamics in electronic applications.

Nov 4, 2007

jandali

i am lost please help me

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Nov 4, 2007

Corneo

Well for starters. Since the cap has been charging for a long time. What is the voltage of the cap just before the switch is thrown? What is the voltage of the cap the instance it is thrown?