Hi, I've started to work on thevenin's theorem and I didn't really get the thevenin resistor part. What I've read was when calculating this resistor you remove the load and the power sources etc. and calculate the resistance between the two points of where the load was removed bla bla bla. What I didn't get was that shouldn't a resistor value needs to be infinite between two points where there is nothing but air. When you remove the load, the resistance, as far as I know, needs to be infinite but as it is seen thevenin resistor gets different values by calculating the amount of other resistances in parallel. How come it is not infinite? What's the logic behind this and the logic behind of getting the thevenin resistor by taking the resistance of other resistors in parallel? (Hope I explained my problem clearly)
Thanks for any help
Thanks for any help