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Physic - 2
Topic 2
You are given a length of copper wire with a small diameter. The only instrument available ot you is the metre ruler. Explain how you would measure the diameter of the wire with an acceptable degree of accuracy.
Solution:
n--number of turns
d--diameter*
*the thickness of the wire is diameter*
l = nd
l --length of coiled wire
Example:
There are 4 turns. The length of the coiled wire is 4 cm.
4 cm = 4 d
d = 1cm
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Seriously, I don't get what they were trying to say. I don't undertstand!!):
I'll blog about my solution and undertstanding of ths question tomorrow(:
*promise*
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