As long as the load doesn’t consume too much power…
- 5.6V zener diode sets base voltage to 5.6V, which sets the voltage across the emitter resistor to 5V due to the 0.6 base to emitter voltage drop.
- 1,000Ω with 5V across it, passes 5V/1000Ω = 0.005A , which is usually referred to as 5mA, through it.
- All series components with the emitter resistor will pass that same amount of current (because they are in series).
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