- #1
vkash
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Today our physics teacher teach us how to find resistance of a network of resistance that is messed to heavily(example all sides of a cube are resistance find resistance). Ok those are very good methods, but it seems that they are not result of experiments done by genius persons it seems that they are derived from Kirchoff's laws of loops. Can you please tell me the proof or something like this for their tricks these short cut tricks.
these short ct tricks are
After all i hope you will not reply so.
thanks for reading. make reply if you know anything about it.double thanks to repliers.
these short ct tricks are
I don't ask him(teacher) for these proofs/derivations because like every time he will say " Proofs never come in examination so what's gain of learning those proofs or derivations."(1)If in a network of resistances line joining terminals in an axis of symmetry then
(a) corresponding same point will carry same current.
(b) If network is folded about this axis of symmetry then equivalent resistance does not change.
(2)If in a network of resistances the perpendicular bisector of joining terminals is axis of symmetry then
(a) corresponding points will have same current but their directions will be different with respect to axis of
symmetry.
(b) If a resistance is lying on the axis of symmetry then it can removed without changing equivalent
resistance.
(c) all the points lying on this point will have same potential.
(3) If in network of resistances if all the resistances are became n times then net resistance will n times.
After all i hope you will not reply so.
thanks for reading. make reply if you know anything about it.double thanks to repliers.
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