Question:
i need to connect two leds with two resistors, two push on/off switches, where i can turn on one led while the other is off and turn on both?
?
2016-03-03 19:02:55 UTC
Hello i need to connect

two leds with two resistors, two push on/off switches,

where i can turn on one led while the other is off and turn on both leds at the same time.

what battery should i use? isnt ok for two 1.5volts battery??

thanks in advance
Six answers:
?
2016-03-03 21:05:46 UTC
3V BATTERY MAKE OF TWO PIECE 1.5V

NO NEED ANY RESISTOR, BECAUSE WHITE LED IS RATED 3V TO 3.4V

TWO PUSH BUTTON SWITCHES CAN DO ALL THE COMBINATION REQUIREMENTS FROM YOU LISTED.

MAKE 2 SAME CONNECTION LIKE THIS WAY.....

+3V ----> SWITCH 1 -----> WHITE LED 1 -----> NEGATIVE.

SAME +3V ----> SWITCH 2 ---> WHITE LED 2 --> SAME NEGATIVE.
megaris
2016-03-05 08:25:25 UTC
You need to ask the question better. I can't tell what you are really looking for in the question you asked. This is a simple logic question.



You want one switch to turn one LED on and off, and the other one to turn on both LEDs, but only when the one LED is off?
?
2016-03-04 07:51:46 UTC
Depends on the Vf of the LEDs. If you are using standard 5mm LEDs, the ambers and reds run at about 2.0V and the green, blue and whites at about 3.3V.



Limit the current to no more than about 20 mA (which will be plenty bright).
2016-03-03 19:03:30 UTC
ur not gonna find someone on yahoo answers smart enough to answer that lol
tom7railway
2016-03-04 11:10:19 UTC
I guess this is your homework. Why not try to do it yourself ?
?
2016-03-03 19:28:46 UTC
lol im not giving up


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