Rakshitha.M
Sindhu.M
2nd Year B.SC, NCMS
Components Required:
- LDR
- Resistor 1k
- LED lights
- Transistor 2222a
- Battery 9v
Working:
When the power is
supplied to the circuit it automatically turns on and off depending on the intensity
of light. During
light the LDR gives high resistor due to this the voltage passing through the base
will become
less than 9v and then LDR glows. During
day time LDR gives low resistance due to this the voltage through the base will
become greater than 5v and it switches the current to emitter and then light
turns off.
Circuit:
No comments:
Post a Comment