Qualification > Reference Material

Physics P3 27/5/2010

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J.Darren:

--- Quote from: blackberry on May 26, 2010, 09:17:48 pm ---PLZZZZZ HELP!!!!!!!!!!!!!!

how can we reduce power loss in relation to resistance?? decrease or increase?
and wat r de methods for changing resistance in relation to length,thickness,area,temp etc of wire?

--- End quote ---
Decrease. Power dissipated in a power cable is calculated by the equation P = I^2 R

Decreases the length, increasing the thickness, increasing the area, decreasing the temperature (metal), increasing the temperature (semiconductor) would help to reduce the temperature. A nichrome wire has more resistance than a copper wire.

Heart Hacker:
hello good work kimo jesus

i didnt read through the whole thread

but i think the notes could be a bit better organized  ::)

for example bigger fonts for the titles etc.(underlined and bold)

elemis:

--- Quote from: Heart Hacker on August 25, 2010, 02:54:37 pm ---hello good work kimo jesus

i didnt read through the whole thread

but i think the notes could be a bit better organized  ::)

for example bigger fonts for the titles etc.(underlined and bold)

--- End quote ---

Dude he made this a few days before the Physics exam; he didnt have the time to beautify it ::)

Heart Hacker:
OMG oh and i thot it was done recently

NICE :D

WARRIOR:
yep :P ari is right ;p

Im going to make a Bio guide soon , i have to start now so i can finish by May :P

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