Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
jellybeans:
--- Quote from: MasterMath on May 25, 2010, 05:46:25 pm ---Uggh how do i add a picture on my desktop?
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um um um ... to ur desktop? or up here?
if youre talking bout sf then... its right above the "post" and "preview" buttons ... "additional options" ? and attach a fileeee :B
Vin:
--- Quote from: weaam on May 25, 2010, 05:27:43 pm ---Can someone please explain Q 19,29,31,34 O/N 07?
Thank you. ;)
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29) C .. always for ohmic conductors the graph is the way shown in the diag. Ohmic conductors are conductors that follow the ohms law .. ohms law states R=V/I .. V is directly proportional to I
MasterMath:
And dont laugh at my drawing ... its freehand didnt have time to make it perfect .. tell me if you dont understand it ..
It explains where the Optical Focus is
Weaam:
--- Quote from: jellybeans on May 25, 2010, 05:44:03 pm ---HI- for Q19, its B , cuz steel's the ONLY one that conducts heat out of the four!
Q 31, its B, cuz there are 2 resistors in SERIES and it has the greatest combined resistance so current is reduced
Q 34, its A cuz ... less resistance hence less heat loss (overheating) ...
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For Q34, doesnt the resistance increase with thicker wire?
And thanks! ;)
Lariemeeva:
Can anyone explain to me Electromagnetic Effects in short? Probably a summery or something similar ...
I have an idea about it but I get so confused and this is by far the only topic that I haven't studied well...
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