Touch Sensor LED

touch sensor LED is a simple led circuit. the led switches on when we touch the two terminals of the wire

Step 1: Parts List

1 x  2N3904 transistor or any other npn transistor
1 x   470r resistor ( yellow violet brown)
1 x   330uf capacitor
1 x  LED ( 3v ,any colors you like)
1 x 9V battery 

Step 2: Steps

complete the circuit according to the circuit diagram, it so simple , the total circuit is less than 3cm in scale

Step 3: Conclusion

have fun with this circuit,