CRTC Electronics

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  •  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: