BRAINCAKEThe Time Constant RC
Given dQ/dt = -Q/RC, we get exponential equations for charge, current and time.
- For charge Q = Q0e-t/RC.
- For potential difference V = V0e-t/RC.
- For current I = I0e-t/RC.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- capacitor
- A component that stores electric charge, consisting of two conducting plates separated by an insulator, called a dielectric.
- capacitance
- The charge stored per unit potential difference across a capacitor.
More in Capacitors
- Use of Capacitors
- Energy Stored in a Charged Capacitor
- Measuring the Energy Stored in a Charged Capacitor.
- Energy stored in a Thundercloud
- Discharging a Capacitor through a Fixed Resistor
- Exponential Decay.
- Measurement with Oscilloscope. Capacitor Smoothing
- Charging a Capacitor through a fixed resistor
All 12 lessons in Capacitors · All OCR A-level Physics topics