2007-01-14 08:47:36 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
And the longer the pipe, the more friction there is on the water that moves through it.
2007-01-14 08:55:20 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It's easy to cut 1 piece of heavy paper with a scissors. It's 10 times as hard to cut thru 10 pieces all at once.
The pattern for resistance of wire is: for copper wire, guage 22, at 25 degrees Celsius,
the resistance is 3.30 Ohms/100 ft.
A 100 foot length would have resistance of 3.3 Ohms. A 200 ft length would have resistance of 6.6 Ohms. Etc.
2007-01-14 17:37:39 · answer #2 · answered by sojsail 7 · 0⤊ 0⤋
Lets take cylindrical block of iron , pass the current into it and check the resistance of material, Add one more cylindrical block of iron on top it and now check the resistance of blocks that are combined together, Length ways the resistance is incresased because you are adding the resistance in series. Hope this answer convince you in your pursuit.
2007-01-14 17:01:06 · answer #3 · answered by Anjana 1 · 0⤊ 0⤋
It's because the electrons have farther to travel and more copper ions to knock loose along the way. If your tv cable is too long, you need to buy an amplifier to get a clear picture.
2007-01-14 16:55:32 · answer #4 · answered by John D 2 · 0⤊ 0⤋