Qualification > Sciences
P1 CIE physics doubts
nid404:
--- Quote from: ~ A.F ~ on April 26, 2010, 08:07:34 pm ---A-W-E-S-O-M-E Nid! You're awesome! :D
+ rep. :)
--- End quote ---
yay!! :-* :-*
I finally got waves...thanks to you :-*
nid404:
--- Quote from: sweetie on April 26, 2010, 08:10:27 pm --- CUD SUM1 PLZ XPLAIN THESE 2 QUE'S?????
may 06
Q.35
Q36
--- End quote ---
Q 35
one i've circled are in series...
10+10+10=30ohms
these are all parallel to the 10 ohm resistor
1/30 +1/10= 1/R
R approx 7.5 ohms
between 1 and 10 ...B
nid404:
Q36
It's the same diagram both of them..
in diagram 1
4 lamps...2 in series..parallel with 2 other is series on the same side of the source
diagram 2
4 lamps 2 in series parallel with 2 other on the other side of the source...
so they're just twisting the diagram...no difference on brightness...
sweetie:
Thank You nid :)
+rep :D
cud u also xplain Q33 and 9 of the same year ??????
astarmathsandphysics:
9, B cos it is the biggest negative gradient
33. Across the top the voltage splits in ration 1:2 ie 4V:8V
but accross the bottom it is 8:V:4V
so Potential differenceD is 4V
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