The title has been poorly constructed and my circuit probably has been aswell.
I got an arduino earlier this week and it has been great, it is the ultimate platform for learning digital electronics, it doesn't just drop me off in the deep end and i already have some coding experience so the learning curve isn't too high.
Anyways, tonight i learnt about relays and transistors, turns out i have a transistor in my little arduino starter kit so i made a circuit with 5v connected to the collector, and a resistor and LED on the emitter end, i'm just using the 3v wire on my arduino to apply a current to the base. My problem is that even when the base isn't getting a current, the led is still dimly lit. Is this because the transistor has a maximum voltage? other then that, i have no clue what could be causing it.
http://www.technologystudent.com/elec1/transis1.htm
my transistor is similar to the bottom transistor in the animated gifs seen at the bottom of the screen.
Also, because I've only been learning about electronics for a week or so, are there any good books that will show me the absolute basics?
I got an arduino earlier this week and it has been great, it is the ultimate platform for learning digital electronics, it doesn't just drop me off in the deep end and i already have some coding experience so the learning curve isn't too high.
Anyways, tonight i learnt about relays and transistors, turns out i have a transistor in my little arduino starter kit so i made a circuit with 5v connected to the collector, and a resistor and LED on the emitter end, i'm just using the 3v wire on my arduino to apply a current to the base. My problem is that even when the base isn't getting a current, the led is still dimly lit. Is this because the transistor has a maximum voltage? other then that, i have no clue what could be causing it.
http://www.technologystudent.com/elec1/transis1.htm
my transistor is similar to the bottom transistor in the animated gifs seen at the bottom of the screen.
Also, because I've only been learning about electronics for a week or so, are there any good books that will show me the absolute basics?