Circuit symbols

• conductors crossing with no connection


  what is this symbol?

  
• junction of conductors 


  what is this symbol?

  
• open switch


  what is this symbol?

  
• closed switch


  what is this symbol?

  
• open push switch 


  what is this symbol?

  
• closed push switch 


  what is this symbol?

  
• cell


  what is this symbol?

  
• battery of cells 


  what is this symbol?

  
• power supply 


  what is this symbol?

  
• transformer 


  what is this symbol?

  
• ammeter


  what is this symbol?

  
• milliammeter 


  what is this symbol?

  
• voltmeter


  what is this symbol?

  
• fixed resistor 


  what is this symbol?

  
• variable resistor 


  what is this symbol?

  
• generator


  what is this symbol?

  
• fuse / circuit breaker


  what is this symbol?

  
• motor


  what is this symbol?

  
• earth or ground 


  what is this symbol?

  
• electric bell

  what is this symbol?

  
• microphone


  what is this symbol?

  
• loudspeaker 


  what is this symbol?

  
• lamp


  what is this symbol?

  
• light emitting diode (LED) 


  what is this symbol?

  
• diode


  what is this symbol?

  
• relay


  what is this symbol?

  
• light dependent resistor


  what is this symbol?

  
• thermistor


  what is this symbol?

  
• heater


  what is this symbol?