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On Sat, 12 Jan 2002 21:59:12 -0500 Joe Heafner <heafnerj@VNET.NET>
writes:
Take a plastic ball point pen and rub it in your hair so that it
acquires a net charge. Hold it a couple of centimeters above a small
piece of paper (e.g. a tiny bit of paper from a notebook sheet).
Find the height at which the paper is just lifted by the electric
force. From this, estimate the polarizibility of carbon.
I don't get is Joe. I tried what you said
and found that the height distance is EXACTLY 3.28759
centimeters. Using this data how do I estimate the
polarizibility of carbon??
Maybe it would be better to use an ordinary wood pencil
that has some hardened CARBON inside?