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- PHY102 Physics II © Dr.Cem Özdoğan
- 27-9 RC Circuits, Charging a Capacitor & Time Constant
- In these circuits, current will change for a while, and then stay constant.
- We want to solve for current as a function of time i(t)=dq/dt.
- The charge on the capacitor will also be a function of time: q(t)
- The voltage across the resistor (VR(t)) and the capacitor (VC(t)) also change with time.
- To charge the capacitor, close the switch on a.