Hey guys. Simple question: what am I doing wrong?
Now I solve this and get a resistance of 1.6Ohms.
Ignore 2 & 3 as there is a short, so you get 4 & 4 in parallel. This is then in series with the next 4 to give a 6. The 6 is in parallel with the next 6 to give 3, which is then in series with the remaining 5 to give 8. This 8 is in parallel with the 2 giving a resistance of 1.6Ohms.
On the mark scheme it has the equation (8*2/8+2) to give the 1.6Ohms.
My question is, why didn't they just use the resistors in parallel equation and what does the potential/resistive divider equation actually do?
At the moment I don't see much point in it from that, so if you could explain why it is useful like that then that would be great. Thanks
Now I solve this and get a resistance of 1.6Ohms.
Ignore 2 & 3 as there is a short, so you get 4 & 4 in parallel. This is then in series with the next 4 to give a 6. The 6 is in parallel with the next 6 to give 3, which is then in series with the remaining 5 to give 8. This 8 is in parallel with the 2 giving a resistance of 1.6Ohms.
On the mark scheme it has the equation (8*2/8+2) to give the 1.6Ohms.
My question is, why didn't they just use the resistors in parallel equation and what does the potential/resistive divider equation actually do?
At the moment I don't see much point in it from that, so if you could explain why it is useful like that then that would be great. Thanks