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Sameer Jahabarali Physics

Unit 5, module 2 Capacitance



Capacitance (C) is charged stored per unit p.d. (voltage). It is measured in farads (F), where 1F = 1 Q
V-1. Capacitance is created by capacitors, they are:

Two metal plates, place close together, so they can `experience'
one and others `activity',…

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Sameer Jahabarali Physics

Unit 5, module 2 Capacitance



Charging capacitor:

Current decreases exponentially (goes less positive, as it is less attractive)
Charge increases, with the rate of increase, decreasing with time (plateaus)
Voltage increases, with the rate of increase, decreasing with time (plateaus)

Discharging capacitor:

Current increases (goes less negative),…

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