Switch LEDs depending on a resistance value

Thread Starter

OliverLi

Joined Feb 6, 2021
3
Hello, I am a student and I have encountered some problems. Develop a circuit with a 10 kΩ potentiometer, 2 LEDs, transistors of the type BC 546 B, and resistors. The circuit should be supplied with 5 V voltage.
How the circuit works: If the resistance of the potentiometer is set to over 5 kΩ, a red LED with a diameter of 5 mm should be switched on. If the resistance of the potentiometer is set below 5 kΩ, a green LED with a 3 mm diameter should be switched on. Please help me.
 

Thread Starter

OliverLi

Joined Feb 6, 2021
3
Sounds like a homework problem. What have you tried so far? What class is this for?
Hello, this is a laboratory problem, I have not contacted the LED problem. I don't know how to design a circuit. Hope you can help me thank you for your reply.o_Oo_O
 

dl324

Joined Mar 30, 2015
12,871
Hello, this is a laboratory problem, I have not contacted the LED problem. I don't know how to design a circuit.
Post a schematic for what you tried and tell us what didn't work.

For school work, you need to do most of the work; we can only offer guidance.
 

Thread Starter

OliverLi

Joined Feb 6, 2021
3
Post a schematic for what you tried and tell us what didn't work.

For school work, you need to do most of the work; we can only offer guidance.
Thank you for your reply, I will discuss further with my classmates, I believe the answer is very close. Thanks for your help. Have a nice day.
sincerely
Oliver
 
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