setTitle('The Transistor'); ?> setMetaDescription('Physics, Transistor, Semiconductor, Nobel, Prize, Laureate, Educational'); ?> printHeader(); ?>
    14:39     
     
  The Diode
If we place the diode in an electrical circuit, such as the one to the left, the lamp will not shine. The reason for this is that there is no power source, such as a battery, and therefore there is no current present in the circuit.
 
     
 
printFooter(); ?>