Capacitance (AQA A-Level Physics): Flashcards

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Capacitance
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What does capacitance measure?

A capacitor's ability to store electric charge

Capacitance formula

C=QVC = \frac{Q}{V}

Unit of capacitance

Farad (FF)

Symbol for capacitance

CC

Symbol for charge in C=QVC = \frac{Q}{V}

QQ

Symbol for potential difference in C=QVC = \frac{Q}{V}

VV

What does capacitance indicate?

How much charge a capacitor holds at a given voltage

Capacitor application: energy storage

Store energy temporarily

Capacitor application: signal processing

Filter signals

Capacitor application: power management

Manage power supply in electronic devices

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