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Grade 8

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    Electronic devices
  •   Study   Slideshow
  • It is are graded based on their power ratings (amount of power they can handle), What kind of electronic device it is?
    Resistor
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  • This component is easy to identify through their three terminals.
    Transistor
  •  15
  • This component has diodes, transistors, and other devices, all of which are etched on a tiny piece of silicon. The components are used in many electronic devices, including watches and computers.
    Integrated circuit
  •  15
  • These are small computers used to control a multitude of devices, such as power tools, remote controls, medical equipment and office machines. 
    Microcontrollers
  •  15
  • What are the four types of switches ?
    : single pole single throw (SPST), single pole double throw (SPDT), double pole single throw (DPST), and double pole double throw (DPDT).
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  • It is a protective device, it can be controlled with a remote switch.
    Circuit breaker
  •  15
  • An electronic components include a rotor, stator, bearings, conduit box, enclosure, and eye bolt. Covert mechanical energy to electrical energy.
    Motor/ Dynamo
  •  15
  • These electromechanical switches shut power on or off, it includes an electromagnet, an armature, a series of electrical contacts and a spring.
    Relays
  •  15
  • It help preserve components from overloading with excessive current. Consists of connection body, support, contacts, and metal-fuse material such as zinc or copper.
    Fuse
  •  15
  • It convert chemical energy to electrical energy.
    Batteries
  •  10
  • Built with two coils of wire, theses are commonly used to step up or step down power. 
    Transformer
  •  10
  • These are passive components that store energy in form of a magnetic field.
    Inductors
  •  15
  • It allows electric current to flow in a single direction only
    Diodes
  •  15
  • These components can store electric charge temporarily.
    Capacitor
  •  15
  • Each diode has two terminals known as? What are the two terminals in diode?
    anode and cathode
  •  15
  • Enumerate the 14 electronic components.
    Resistor Capacitors Diodes Transistors Inductors Integrated circuits Micro controllers, Transformer, Batteries, Fuses, Relays, Switches, Motors, Circuit breaker
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