Posted by **Rachael** on Friday, March 22, 2013 at 9:13am.

Given the the instantaneous voltage across a capacitor is VC=40(1-e -t/CR) Volts When being charged by a 40 volt DC supply, find the time, t for VC to reach 18 volts after the charging process has started if C = 100ìF and R = 20kÙ

## Answer this Question

## Related Questions

- Math (Confused, no idea where to begin) - The voltage V across a charged ...
- Physics - What value of voltage will be reached across the plates of a capacitor...
- Physics - Three parallel plate capacitors (C1,C2 and C3 ) are in series with a ...
- Physics!! Help!!!!! - The time dependence of voltage across a discharging ...
- Trigonometry - the voltage E in volts in a circuit after t seconds (t70) is ...
- physics - What is the voltage across a capacitor after a time of two constants ...
- Physics - In the following circuit R_1=3 Ohm, R_2=10 Ohm, C=0.003 Farad, V=5 ...
- math - Empirical rule the authors generac generator produces voltage amounts ...
- Physical Science: Series Circuit - There is a circuit of 2 lamps in a series. If...
- alGebra - A constant tone is being applied to a speaker. The voltage across the ...