When we given 5 V Dc In led with 150 ohm Rp resistor then you getting standard Led intensity 20 mA
When we set 70 ohm Rp resistor then LED can damage
When we set 80 ohm Rp resistor then LED given 40 mA current
Because LED maximum current pass 40 mA current
When we set 1 kohm that time LED given 3.19 mA current
