Electronics components

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Across
  1. 4. Is an optical source, a light source. This component produces red, green, yellow or orange light.
  2. 9. A sheet of insulating material used for the mounting and interconnection of components in electronic equipment.
  3. 11. Used in circuit when it is necessary to alter the resistance.
  4. 13. A signalling apparatus to an electric bell but without hammer or gong, producing a sound by the vibration of an armature.
  5. 14. Is a very small battery
  6. 17. Determine the flow of current in an electrical circuit.
  7. 18. An electrical conductor wound into the form of a spiral, to provide inductance or a magnetic field.
  8. 19. A semiconducteur device that amplifies, oscillates, or switches the flow of current.
Down
  1. 1. Voltage, current and resistance can easily be measured by using a _ _ _ _ _ _ .
  2. 2. A circuit of transistors, resistors, and capacitors constructed on a single semiconductor chip, in which the components are interconnected to perform a given function. Abbrevation IC
  3. 3. Is a device that supplies electric power to an electric load. It converts AC line voltage to DC voltage.
  4. 5. Connects the 9 volt battery to the circuit.
  5. 6. Used to join the components together. Usually the RED one is positive and the Black negative.
  6. 7. Component that is used to store an electric charge and is used in timer circuits.
  7. 8. Allows electricity to flow in one direction and blocks the flow in the opposite direction
  8. 10. Is an electromagnetic switch. In other words it is activated when a current is applied to it. The main part of the _ _ _ _ is the coil at the centre
  9. 12. Has great resistance at low temperatures but, when it warm up their resistance decreases rapidly. Current can flow through it.
  10. 13. Store electrical charge and when is put into an electronic device, it provide the power.
  11. 15. Is used to test circuit. Wires and components are simply pushed into the holes to form a completed circuit and power can be applied. Components are not soldered.
  12. 16. Is a material that does not allow current to flow through it. Materials such as rubber and plastic.