BRAINCAKECharging a Capacitor and Constant Current
In order to charge a capacitor at constant current a variable resistor is placed in the circuit to keep the current constant. The charge on the Capacitor is Q = It where Q is charge in coulombs, T is time in seconds and I is current in amps.
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Key terms in this lesson
- capacitor
- A component that stores electric charge, consisting of two conducting plates separated by an insulator, called a dielectric.
More in Capacitors
- A Capacitor
- Capacitance
- 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.
All 12 lessons in Capacitors · All OCR A-level Physics topics