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searley

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am i going in the right direction here.

if a conductor has a resistance of 0.25 ohms if the lengh of a conductor is doubled and the csa of the conductor is halved,the resistance will stay at 0.25 ohms.Guiness Drink

 
no................

Double the length means double the resistance and half the csa means double the resistance so..........25x2=.5 & .5x2=1

 
if the lengh of a conductor is doubled and the csa of the conductor is halved

 
Do you mean he's asking 2 questions

asking the effect of resistance if length increases?

asking the effect of resistance if CSA reduced?

Could be read either way

 
The answer is a quarter.
:_| Whichever way you read that question Admin, I`m afraid that a quarter is not, and cannot be correct.Blushing

If the conductor has a resistance of 0.25........

As Paul says, doubling its length will double its resistance = 0.5

OR halving the csa will similarly double its resistance = 0.5

ergo: doing both will produce both effects together-0.25 x 2 = 0.5 x 2 = 1

ok????

 
I'm giving ext15 a run for his money. :eek:

:D

]:)

 
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