[ot] use of a long coaxial cable

[Ric Moore]

On Sat, 2007-01-20 at 20:38 +0800, Man-wai CHANG wrote:
> > 10base2 is 50 Ohm.. period.
> > 75 Ohm is probably (cable) TV or radio.
> 
> Do we need special equipment to measure impedance? I have forgotten my
> A-Level physics... :)

Just an Ohm meter... 

E = I times R
Energy = Impedence times Resistance  which translates to:
Volts = Amperage times Ohms.

I've always wondered why they changed all the words?? Who and When? 
 
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