# Why isn't electricity flowing through this wire?

by remedemic
Tags: electricity, flowing, wire
 P: 19 In the top circuit, electricity doesn't flow through section 2, but it does in section 1. In the bottom circuit however, electricity flows through both sections 3 and 4. Why does simply adding a resistor stop the flow of electricity in 2? Much appreciated!
 P: 25 current will flow through the easiest path ( without resistance) or with less resistance and as the wire doesn't have any resistance, all the current will flow through it.
P: 19
 Quote by jafferrox current will flow through the easiest path ( without resistance) or with less resistance and as the wire doesn't have any resistance, all the current will flow through it.
In the top circuit, if I add a resistor to section 1 that has less resistance than section 2, electricity will still flow through both, won't it?

 P: 25 Why isn't electricity flowing through this wire? yeh it will, but the one with more resistance will have less current flowing through it.
P: 19
 Quote by jafferrox yeh it will, but the one with more resistance will have less current flowing through it.
SO, why isn't there just less current (instead of zero current) in section 2 compared to section 1 since it has more resistance?

Thanks for the help by the way, I greatly appreciate it.
 P: 25 it's just how it is, because current has to flow through both of the sections and that most current will flow through the section with less resistance.
P: 19
 Quote by jafferrox it's just how it is, because current has to flow through both of the sections and that most current will flow through the section with less resistance.
im understanding it now. Thank you very much sir.
P: 442
 Quote by remedemic SO, why isn't there just less current (instead of zero current) in section 2 compared to section 1 since it has more resistance?
You are right, there is SOME current in section 2. The ratio of the currents is the same as the ratio of the resistances; 10cm of wire might have a resistance of 0.006Ω so if R3 is 100Ω and 0.1A is flowing through the circuit, 0.1A x 0.006 / 100 = 6μA will be flowing through R3.