How come in parallel resistors, the current through each is the same.?

Question

Kirchoff's law says at any junction the sum of currents directed in equals sum of currents directed away. So as the current breaks more and more down a parallel circuit, how is the current the same for each resistor?

Please help :)

Answer 1

in parallel circuit, the voltage in each resistors is constant.

in series circuit, the current in each resistors are constant.

by Kirchoff's Current Law... Current entering is equal to current leaving the node.

Answer 2

The sum of all the currents through the branches has to equal the current in and out, so that part is correct.

The current is equal through each branch resistor only IF the branch resistances are equal - a special case.  

Answer 3

It isn't.  You've got it backwards.

The current is the same for all series resistors, but each may have a different voltage drop.

The voltage is the same for all parallel resistors, but each may have a different current.

B.Eng.