# Calculate NPN transistor [closed]

Assume I have battery with voltage $$\V = V_1\$$ and a PN2222 NPN transistor. I connect the C and B to the positive side of the battery and connect the E to the negative side of the battery. Assume that at the 3 wires, I have static resistances of $$\R_1\$$, $$\R_2\$$ and $$\R_3\$$ as in the diagram. How can I calculate the two currents through $$\R_1\$$ and $$\R_2\$$?

(The values like 1 V, 1 Ohm etc. and 2N3904 in the diagram are just example values; I don't know how to remove them.)

simulate this circuit – Schematic created using CircuitLab

I am sorry for this dumb question, I am an absolute beginner, although I do understand math and some physics. In the data sheets of the PN2222, I could not find the necessary parameters like beta. But even if I knew beta, I would also need to know to some kind of inner resistance of the transistor, wouldn't I?

• There is an absolute requirement for answering such a question: Circuit diagram.
– LvW
Commented Jul 2, 2022 at 9:16
• I described it. Or which tool can I use to paint one? Commented Jul 2, 2022 at 9:19
• Beta ~= hfe. You can calculate the resistance from the slope of curves in the datasheet. Commented Jul 2, 2022 at 9:19
• Kolodez, your decription is not clear. What means "I connect C and B to the positive side of the battery"? How many volts? When both are connected to a common node - short between C and B?
– LvW
Commented Jul 2, 2022 at 11:14
• Edit your question and add a schematic. There is a schematic editor built into the editor. Learning starts with giving us a schematic diagram with battery voltage and resistor values. It's not that we can't handle the words, but the schematic removes ambuiguity! Commented Jul 2, 2022 at 22:06