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PARALLEL CIRCUITS

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......



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