The Parallel Plate Capacitor | Physics

Parallel Plate Capacitors are the type of capacitors which are formed by arrangement of electrodes and insulating material (dielectric). The two conducting plates act as electrodes which are separated by a dielectric between them. Copy the link given below and paste it in new browser window to get more information on The Parallel Plate Capacitor www.askiitians.com/iit-jee-electrostatics/the-parallel-plate-capacitor/

1. Parallel Plate Capacitors

2. •A such as µF, nF or
pFparallel plate capacitor
has two parallel plates
separated by an insulating
material
•A capacitor stores an
electrical charge between
the two plates
•The unit of capacitance is
Farads (F)
•Capacitance values are
normally smaller,

3. • capacitor construction
Dielectric
material
Plate 1
Plate 2
The dielectric
material is an
insulator therefore
no current flows
through the
capacitor

4. Factors Affecting Parallel Plate Capacitor

5. Storing a charge between
the plates
•Electrons on the left
plate are attracted
toward the positive
terminal of the voltage
source
•This leaves an excess of
positively charged holes
•The electrons are
pushed toward the right
plate
•Excess electrons leave a
negative charge
+-
+
_
+
_

6. Parallel Plate Capacitor With Dielectrics

7. Types of capacitors
•The dielectric material
determines the type of
capacitor
•Common types of
capacitors are:
▫Mica
▫Ceramic
▫Plastic film

8. What Happens When You Insert a
Dielectric?
•With battery attached, V=const, so more charge
flows to the capacitor

9. What Happens When You Insert a
Dielectric?
With battery disconnected, q=const, so voltage (for given q) drops

10. Capacitance of Parallel Plate Capacitor

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