tle lesson

• two types of multi-tester -

  • analog multitester - you can identify the value of what your are testing by reading its scale
  • digital multitester - it displays the numerical value on its screen
• MULTITESTER - an instrument used to measure volt, current, and resistance in electrical gadgets; it is used to test the continuity of electricity

  ;it is known as : vom (voltmeter, ohmeter, millimeter)
• DIAGRAM - visual representation of flow of current in a conductor or wire
• types of diagram -

  • pictorial : sketch of electrical circuit that shows the external appearance of each component
  • schematic : sketch showing components of circuit using standard electrical symbols.
• two types of current :

  • direct current
  • alternating current
• types of circuit :

  series : double pole switch