CRTC Electronics

 

•  Capacitor consists of two metal plates separated by a dielectric.
• The dielectric can be made of many insulating materials such as air, glass, paper, plastic etc.
• A Capacitor is capable of storing electrical charge and energy.
• The larger the area of the plates or the smaller their separation the more charge the Capacitor can store.
• Electrolytic Capacitors are polarized. They have a +ve and a -ve terminal.
• Capacitance is measured in Farads, which is a very large unit so Microfarad (uF), Nanofarad(nF) and Picofarad (pF) are generally used.

The basic construction and symbol for a parallel plate capacitor is given as: