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DK3UZ > TECHNIK 18.10.06 19:08l 32 Lines 1336 Bytes #999 (0) @ WW
BID : EC3934J7CBVX
Read: GUEST DL8FBH DL6DBA DL1LCA DH0GHU
Subj: Re: congrats physics p.
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In <J78P9KDB0FOR@bbs.net> dk2za@db0for writes:
> By the way ... do you know this very old but somehow rather tricky problem?
> ---------------------------------------
> | |
> A |--------| | |--------| |--------| | B
> o---------| 10 Ohm |---------| 10 Ohm |---------| 10 Ohm |---------o
> | |--------| |--------| | |--------|
> | |
> ---------------------------------------
> Many people find it difficult to determine the resistance between A and B.
> And if you found it out, how do you best explain it?
Were I in school now, I'd kick my physics teacher's behind for
putting this question in a physics context, because it doesn't test
knowledge of Ohm's law, but e.g. how to make the most complicated
drawing of three resistors connected in parallel, or one's quality of
two-dimensional imagination.
Shrouding a simple question in obfuscating words equally deserves
some vicious kicks in the sitting place. A physics or electronics test
should be just that and not one of semantic ability.
73, Eddi ._._.
--
dk3uz@db0hht.ampr.org - dk3uz AT darc DOT de - DK3UZ@DB0HHT.#HH.GER.EU
QTH Hamburg-Bramfeld, FN31a
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