zhang16-2

# zhang16-2 - Capacitor For storing electric energy...

This preview shows pages 1–3. Sign up to view the full content.

1/21/2010 1 Capacitor: - For storing electric energy; Electrical signal filter, etc - Used in electric circuits Simplest capacitor: Parallel Plate Capacitor - Consists of two parallel plates - Each have area A; separated by a distance d - The plates carry equal and opposite charges Q Q When charged, the two plates will have potential difference D V - What is the relationship between Q and D V? The capacitance , C - Measures how well a capacitor can store energy V Q C D Q Q Units: Farad (F) 1 F = 1 C / Volt A Farad is very large Often will see μF or pF V D

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1/21/2010 2 Capacitance of a parallel-plate capacitor: d A C o d 2 2 12 0 N.m / C 10 85 . 8 (Permittivity of free space) A area A circuit is a collection of objects usually containing a source of electrical energy (such as a battery) connected to elements that convert electrical energy to other forms A circuit diagram can be used to show the components and paths of the real circuit
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 8

zhang16-2 - Capacitor For storing electric energy...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online