|
|||||||
|
|
|
|||||
|
|
|||||||
A Parallel Circuit is a circuit
in which each load
has its own path. A different
set of rules apply
than those that define Series
Circuits.

Because there is more
than one path for electron flow, this provides a larger movement
of
electrons - resulting in a higher current flow. Because
current flow is controlled by resistance,
and there is more current flow - it follows that there should
be less resistance in a parallel circuit
as more loads are added. Due to this fact, a special formula
must be used to find total
resistance in a parallel circuit:

Because there are separate
paths for current flow, current can divide to flow through the
separate branches of the circuit. The most current will flow
through the least resistance.
Therefore, the total current flow in a parallel circuit is equal
to the sum of the current flow in
the branch circuits. This is Kirchhhoff's CurrentLaw
- and applies only to
parallel circuits.
It = I1+I2+I3......
Because each load has
its own path back to the source, the voltages at each load are equal
to the source voltage in a parallel circuit:
Et = E1=E2=E3......