comptech

• wire


  It is a direction along which a current flow.

  
• wire joined


  A black dot is used to represent a wire connection or junction

  
• Wires not joined


  A "bridge" is employed to describe the absence of any wires.

  
• resistor


  It regulates the flow of electrical current through an LED

  
• capacitor


  It stores an electric charge that is used in a timing circuit.

  
• polarized capacitor


  It is used as a filter to block DC signals while allowing AC signals to pass through.

  
• variable capacitor


  This is typically used as a radio tuner.

  
• battery


  A device generates electricity.

  
• dc supply


  A current flowing in only one direction

  
• ac supply


  The path of current supply changes on a regular basis.

  
• fuse


  A safety device which melts and breaks the current.

  
• transformer


  It is used to boost and decrease the voltage of an alternating current (AC)

  
• diode


  The current can flow in only one direction through a semiconductor device.

  
• led


  A semiconductor diode is a device that converts energy into light.

  
• zener diode


  This Voltage regulator that safeguards the device against power surges.

  
• photo diode


  Light is converted into current or voltage

  
• npn transistor

  The component is used to both amplifying and switching current

  
• pnp transistor


  This transistor boosts current

  
• Amplifier


  A device that boosts the power of electrical signals.

  
• arial antenna


  This device is used to receive and transmit radio signals.

  
• ground


  It is used to reduce the risk of equipment damage caused by electrostatic buildup.