(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Base on this circuit, how would I make the LED stay lit for 2 seconds? My knowledge goes as far as op amp and first-order circuits. I just don't know how to mathematically solve for the right capacitor that will make LED stay lit for 2 seconds because I've never dealt with a 555. Thanks

2. Relevant equations

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3. The attempt at a solution

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1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Simple circuit(555 and Capacitor)

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