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Old 11-03-2009, 01:07   #10
bw41101
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Re: The HDMI cable that comes with V+, is this sufficient?

Quote:
Originally Posted by TheDon View Post
You seem to be implying that because the size of the pins in the connectors is thin the entire run of cable has to be the same size,
Did I - where?

Anyway in laymans terms to clarify:

EFFECT OF CROSS-SECTIONAL AREA. - Cross-sectional area greatly affects the magnitude of resistance. If the cross-sectional area of a conductor is increased, a greater quantity of electrons are available for movement through the conductor. Therefore, a larger current will flow for a given amount of applied voltage. An increase in current indicates that when the cross-sectional area of a conductor is increased, the resistance must have decreased. If the cross-sectional area of a conductor is decreased, the number of available electrons decreases and, for a given applied voltage, the current through the conductor decreases. A decrease in current flow indicates that when the cross-sectional area of a conductor is decreased, the resistance must have increased. Thus, the RESISTANCE OF A CONDUCTOR IS INVERSELY PROPORTIONAL TO ITS CROSS-SECTIONAL AREA.

EFFECT OF CONDUCTOR LENGTH. - The length of a conductor is also a factor which determines the resistance of a conductor. If the length of a conductor is increased, the amount of energy given up increases. As free electrons move from atom to atom some energy is given off as heat. The longer a conductor is, the more energy is lost to heat. The additional energy loss subtracts from the energy being transferred through the conductor, resulting in a decrease in current flow for a given applied voltage. A decrease in current flow indicates an increase in resistance, since voltage was held constant. Therefore, if the length of a conductor is increased, the resistance increases. THE RESISTANCE OF A CONDUCTOR IS DIRECTLY PROPORTIONAL TO ITS LENGTH.

Also a characteristic of copper is that when it's temperature increases so does it's electrical resistance resulting in an increase in current - though (in this case) one would not imply that an excessive length of cable would get hot.

Anyway to save getting into a pi**ing contest - we'll agree to disagree and I'll stick to what I originally recommended (to Mr Moo) in the first place "stick with what you've got there owd cocker"

Fin and Si thee
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