So I have two batteries of 9V (so 18V) and a 1MegaOhm resistor.
What I want is a 1 mA current through the resistor. How do I accomplish this? What other components do I need in order to force 1 mA through this resistor?
If I just connect the 18V to the resistor, by Ohm's law, I would not accomplish anything.
Obs: Of course, all this without increasing the voltage so I get 1mA.
Is it possible?
What I want is a 1 mA current through the resistor. How do I accomplish this? What other components do I need in order to force 1 mA through this resistor?
If I just connect the 18V to the resistor, by Ohm's law, I would not accomplish anything.
Obs: Of course, all this without increasing the voltage so I get 1mA.
Is it possible?