LDR

Cards (6)

  • light dependent resistors are dependent on light intenisty
  • low resistance = bright light
  • high resistance= dark
  • ldr are used in outdoor lighting, burgular devices and automatic night lights
  • connect a bulb in parallel to an ldr, the pd across both will be high when its dark and when dark the resistance of ldr will be high
  • the bulb will get brighter as room got darker when connected across an ldr