- Combine the two 2 Ohm resistors in parallel (the bottom and diagonal ones) - Combine that in series with the 2 Ohm resistor (left one connected to X) - Combine that in parallel with the last 2 Ohm resistor (the one between X & Y)
I'm not the best at electricity but I think you can redraw the circuit like so and then work out the parallel ones uning the formula, then add it to the ones in series. Hoping the photo shows up!
However I got 5 ohms like that so I'm probably completely wrong.
I'm not the best at electricity but I think you can redraw the circuit like so and then work out the parallel ones uning the formula, then add it to the ones in series. Hoping the photo shows up!
However I got 5 ohms like that so I'm probably completely wrong.
@
RogerOxon Is the above circuit the same as the one in the question?
- Combine the two 2 Ohm resistors in parallel (the bottom and diagonal ones) - Combine that in series with the 2 Ohm resistor (left one connected to X) - Combine that in parallel with the last 2 Ohm resistor (the one between X & Y)
Please post your calculations.
I followed what you said and got 1.2 which is the correct answer. However, how do you know which resistor is in parallel and series with what?
I followed what you said and got 1.2 which is the correct answer. However, how do you know which resistor is in parallel and series with what?
Look at where the current can flow. If there's more than one branch that it can take, then those branches are in parallel.
From X, the current can go straight to Y, or down, so we have the top (x-Y) 2 Ohm resistor in parallel with the rest of the circuit. Going down, we go through the 2 Ohm resistor, so that's in series with the rest of this branch. From the bottom left, we can go through the diagonal or bottom, so they're in parallel.
I keep on getting 0.8ohms. I add the left and top on cos their in series. i add in parallel the bottom and diagonal. why are the left and top not in series.
I keep on getting 0.8ohms. I add the left and top on cos their in series. i add in parallel the bottom and diagonal. why are the left and top not in series.
Left and top are not in series. Top and (left in series with the other two in parallel) are in parallel.