Using properties of a series circuit, the sum of the voltages across the LED and resistor R must equal the supply voltage. \({V_s} = {V_{LED}} + {V_R}\) Now substitute the supply voltage (\(6V ...

Of course, the resistor also has to have a sufficient view of the LED. You might use this as a safety light that only works in the dark. A simple circuit ... We always like examples of doing ...

Can you do the same thing with electronic circuits? The answer–perhaps ... you might want to get close values. For example, to use a 47 ohm collector resistor, you could adjust the quiescent ...