So i have not done this in a decade and trying to remember this. apparently im doing something wrong.
I was taught thevnins therom using the the short circuit method.
Vth = Isc*Rth
Take a simply voltage divider where R1 and R2 = 10k
The point of interest of A and B commonly called would be across R2.
So i was taught or at least i think i was to do the following.
Find ISC as if points A and B were shorted.
So in this case using a 15V supply i would have
15V / 10k = 1.5 mA is ISC
Then Vth would be what is the voltage at point A with A and B open, well, that in a voltage divider that is just the supply voltage of 15V.
So vth = 15V and Isc = 1.5 mA
So rth = 15V/1.5mA = 10k of course
So the eq circuit is a 15V supply with a 10 k resistor.
What did i do wrong here?
I was taught thevnins therom using the the short circuit method.
Vth = Isc*Rth
Take a simply voltage divider where R1 and R2 = 10k
The point of interest of A and B commonly called would be across R2.
So i was taught or at least i think i was to do the following.
Find ISC as if points A and B were shorted.
So in this case using a 15V supply i would have
15V / 10k = 1.5 mA is ISC
Then Vth would be what is the voltage at point A with A and B open, well, that in a voltage divider that is just the supply voltage of 15V.
So vth = 15V and Isc = 1.5 mA
So rth = 15V/1.5mA = 10k of course
So the eq circuit is a 15V supply with a 10 k resistor.
What did i do wrong here?