Qualification > Sciences

ALL PHYSICS DOUBTS - POST HERE !!

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6394:

--- Quote from: A@di on May 25, 2010, 07:10:36 pm ---Imma sleep too...Good night guyz. Best of luck.. !!

--- End quote ---
u guyz seepppin lol i gt up nw n will prepare :P :P :P ;D for tom
......gud luk 2 u as wel

Ghost Of Highbury:

--- Quote from: 6394 on May 25, 2010, 07:14:33 pm ---u guyz seepppin lol i gt up nw n will prepare :P :P :P ;D for tom
......gud luk 2 u as wel

--- End quote ---

I have already given my IGCSEs :D

6394:

--- Quote from: Kimo Jesus on May 25, 2010, 07:05:09 pm ---dude u cant have alternating POLES for A CRO!!!!!!

do u want the elctrons to keep flyin form one directio another??

no

for DC

U HAVE 1 FIXED NEGATIVE POLE ( CATHODE ) AND ONE ANODE ( POSOTIVE)

ELECTRONS MOVE FROOM NEGATIVE TO POSOTIVE

--- End quote ---
rofl
i told u!!!!
dat u r a funny teachr  :P ;D :D ;)

Vin:

--- Quote from: ambitious94 on May 25, 2010, 07:09:27 pm ---Nov 2005.
15 A knife is being sharpened on a rotating sharpening-stone. A spark flies off and lands on the
operator’s hand. The spark is a very hot, very small piece of metal. The operator feels nothing.
What does this show about the piece of metal?
A It has a high thermal capacity.
B It has a low thermal capacity.
C It is a good conductor of heat.
D It is a poor conductor of heat.

Why is it B? :S

and Q31, why does the bulb become brighter? :S
Thanks in advance  ;D

--- End quote ---

As soon as the metal files off the stone it gets cooled .. hence the person doesnt feel anything .. It has a low thermal capacity meaning looses fast  

6394:

--- Quote from: A@di on May 25, 2010, 07:16:58 pm ---I have already given my IGCSEs :D

--- End quote ---
ooohkk
lol
so hlpin us haan!!!! :) ;) :D

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