# Homework Help: Help me solve this differential equation (Capacitor Charging)

1. Mar 28, 2010

### thomas49th

I'm trying to solve this:

$$E = R\frac{dQ}{dt} + \frac{Q}{C}$$

from here
http://physics.bu.edu/~duffy/semester2/c11_RC.html
You might recognize this as the charging equation for a capacitor

I'm guessing I need to try and get (1/q)dQ or similar somewhere to get the lnQ

but I cannot seem to get the right manipulation

Thanks
Thomas

Last edited: Mar 28, 2010
2. Mar 28, 2010

### justsof

for example,
divide the equation by dQ and write the terms with dQ and dt each to another side of the equation. Integrate both sides and you will be able to find Q(t)