If a charged capacitor c=35 micro farads is connected to a resistor R=120 ohms how much time will elapse until the voltage falls to 10^6/D of its original max value?(adsbygoogle = window.adsbygoogle || []).push({});

Ciruit contains a switch, resistor, emf and a capacitor in series.

Relevant equations are Time constant= T=cR and V(Final)=V(initial) e^-t/cr

I think it requires logarithms but i am not sure.

Can you please help me how to answer this.

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# An RC Ciruit

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