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ALL PHYSICS DOUBTS - POST HERE !!

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idrees:

--- Quote from: ~VIN1094~ on May 08, 2010, 09:24:10 pm ---Variable resistors when used in electronics are called potentiometers ..  :)

--- End quote ---

yeah .. how does it work?

Vin:

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

the_grim_reaper:
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

Ghost Of Highbury:
This has been solved earlier. plz check the previous posts.

thenewkid™:
Can some1 pls help me with this:
May/June 2008 p6 q2 b(i)
Thanks alot

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