You are using 10 LEDs in parallel, each drawing ~16mA.
That's ~160mA collector current.
You need ~16mA base current for that.
So a (5 - 0.7) / 0.016 = ~270ohm resistor.
Leo..
You are using 10 LEDs in parallel, each drawing ~16mA.
That's ~160mA collector current.
You need ~16mA base current for that.
So a (5 - 0.7) / 0.016 = ~270ohm resistor.
Leo..