Ok this isn't particularly homework, but just revision needed. I tried asking the teacher but he's making no sense whatsoever. So, Firstly:
1. So here is my very badly drawn diagram. A very simple circuit with an LED.
Ok so firstly, (yes that is a transistor at the top) the light doesn't turn if the resistance of the orange resistor is high enough right? Example. If the battery was giving say 9V, the current would increase so that there is 9V going up and 9v going towards the base of the transistor, and the 9V at the orange would get reduced depending on the orange resistance. Saying that the orange one is low, 8V continues on and reaches the base, making the resistance of the transistor low, which means the LED turns on.
But what is the relation between the orange and light blue resistor? Wouldn't the electricity split up to go through the blue resistor and to also go up into the base, which would cancel out the light blue resistor?
And another question, how many Volts does 1 ohm resist?
Sorry if this seems really dumb but i've asked but have gotten no good answers :(
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