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Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 199443 times)

Offline Snake

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #240 on: May 08, 2010, 05:58:09 pm »
Quote from: the golden girl on May 08, 2010, 05:48:35 pm
yup it is ..

 u gotta kno that the ammeter is put in series ..like how u put it .....as for the voltmeter it's out in parallel like what u did .........
got it ?
 
anytime :D

hope i helped ...
Does it matter if the ammeter was where the Vressistor is and the Vressistor where the ammeter was?
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Offline The Golden Girl =D

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #241 on: May 08, 2010, 06:00:01 pm »
Quote from: Snake on May 08, 2010, 05:58:09 pm
Does it matter if the ammeter was where the Vressistor is and the Vressistor where the ammeter was?

in this circuit , it's doesn't matter
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Offline Snake

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #242 on: May 08, 2010, 06:52:07 pm »
Quote from: the golden girl on May 08, 2010, 06:00:01 pm
in this circuit , it's doesn't matter

Ah ok, then I was right lol
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Offline idrees

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #243 on: May 08, 2010, 09:16:53 pm »
ok i have a doubt -

what the hell is a potentiometer!

i mean how does it work .. how does it divide the voltage using resistors . yeh? atleas thats what i think :S
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #244 on: May 08, 2010, 09:24:10 pm »

Variable resistors when used in electronics are called potentiometers ..  :)
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Offline idrees

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #245 on: May 08, 2010, 09:41:27 pm »
Quote from: ~VIN1094~ on May 08, 2010, 09:24:10 pm
Variable resistors when used in electronics are called potentiometers ..  :)

yeah .. how does it work?
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #246 on: May 08, 2010, 09:47:54 pm »

well like a normal resistor .. but u can increase/decrease resistance without changing the resistor .. u use a variable resistor for ur fan regulator n stuff .. or dim lights in the living room (at least my living room :) )

they can either be used as a rheostat or potential divider
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Offline the_grim_reaper

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #247 on: May 09, 2010, 12:31:30 am »
Sorry to disturb guys but I'm really stuck on question 2, part A of CIE IGCSE Physics Oct/Nov 2005. I'd really really appreciate any help! Exam on tuesday and I really suck when it comes to paper 6....

http://www.freeexampapers.us/IGCSE/Physics/CIE/2005%20Nov/0625_w05_qp_6.pdf
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Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #248 on: May 09, 2010, 05:21:50 am »
This has been solved earlier. plz check the previous posts.
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Offline thenewkid™

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #249 on: May 09, 2010, 10:46:24 am »
Can some1 pls help me with this:
May/June 2008 p6 q2 b(i)
Thanks alot
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Offline Fastal

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #250 on: May 09, 2010, 10:54:58 am »
Quote from: thenewkid™ on May 09, 2010, 10:46:24 am
Can some1 pls help me with this:
May/June 2008 p6 q2 b(i)
Thanks alot

here:)
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nid404

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #251 on: May 09, 2010, 10:57:19 am »
Please attach the file again....nothing can be seen
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #252 on: May 09, 2010, 10:59:25 am »

ya i kno but u get it once u click it..
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nid404

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #253 on: May 09, 2010, 11:01:01 am »
oh ok...my bad  :-[
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Offline thenewkid™

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #254 on: May 09, 2010, 11:02:39 am »
Thanks ~VIN1094~
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