Electrical Engineering - Two terminal devices circuit puzzle

Author

Two terminal devices circuit puzzle

robin

2008-01-26, 9:25 am

Hi
I came across the following puzzle which involves circuits and two
terminal devices but i think it's basically a mathematical puzzle. But
i am unable to understand it.

Puzzle:

In any circuit containing only "two terminal" devices we can always
find two "links" whose removal (not simultaneous)

still left all the components connected to each other by wires.

a hint was also given : consider an unplugged toaster as a valid
circuit in this puzzle.

I am unable to understand what is a circuit with "two terminal"
devices and what are "links" in it.

Can anyone give an example of such a circuit in which the above
property holds.

I think this problem can be converted into graphs. But i dont know how
if it is possible?

Please help.

Roy

2008-01-26, 5:25 pm

I think they are referring to a series/parallel circuit in which you can
disconnect the parallel connections but the would still remain connected
in series

Roy Q.T. ~ US/NCU ~ E.E. Technician
[have tools, will travel]

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