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Nameo

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Nameo

Resistors and Lights

How is that in an electrical circuit a light bulb and a resistor can behave in the same manner but have different resistance values?
20:47 Sun 12th Feb 20064 answers, last by elginsmarble 14:23 Mon 06th Mar 2006
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Nameo

Electromagnet

What would cause a metal bair to create a buzzing sensation when held close to an electromagnet? And what are advantages of an electromagnet over a permanent magnet?
02:46 Mon 06th Feb 20063 answers, last by steveb 15:49 Tue 07th Feb 2006
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Nameo

Wire Breaking in Elecrtical Circuit

Why does a fuse wire break as the current increase? I understand why it would heat up, but what causes the wire to break?
23:07 Sun 05th Feb 20067 answers, last by stanleyman 02:49 Thu 09th Feb 2006
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Nameo

Arrangement Puzzle

You have 7 resistors that should all have a value of 1 but one has a value greater than one (resistor is a physics term, unimportant though), what is the fewest number of measurements needed to find...
14:11 Sun 05th Feb 20062 answers, last by rojash 15:48 Sun 05th Feb 2006

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