Physics A-Level
Graphical determination of rate of change and time constant
What Graphical determination of rate of change and time constant means in Physics A-Level, as defined for OCR.
Definition of Graphical determination of rate of change and time constant
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Reference: OCR
The gradient of the Q–t graph at any instant equals ΔQ/Δt, and plotting ln Q against t gives a straight line of gradient −1/CR.
Topics that use Graphical determination of rate of change and time constant
- Charging and discharging capacitors (OCR A-Level)
Related terms
- Capacitor charging and discharging
- Circuit setup for capacitor investigations
- Current, charge and voltage graphs
- Differential equation for discharging a capacitor
- Discharging circuit
- Exponential charging and discharging
- Exponential decay and growth
- Exponential decay graph
Using Graphical determination of rate of change and time constant in the exam
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