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Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 229497 times)

Offline Raywin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1335 on: May 25, 2010, 05:06:28 pm »
Quote from: Baladya on May 25, 2010, 05:04:58 pm
Current is going from + to -. And so current is gonna go in one side (and this is S) and the come out from (N)

Ohh got it.. :) but is tht a rule or something?
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Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1336 on: May 25, 2010, 05:07:11 pm »
Quote from: Raywin on May 25, 2010, 05:03:29 pm
But how do u noe which is north and which is south? :s

Check the diagram same post
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Offline diva_sparkles

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1337 on: May 25, 2010, 05:07:50 pm »
Quote from: Baladya on May 25, 2010, 05:00:50 pm
And also plz explain how radioactivity is used in fire alarms

dont think its in da syllabus!!!
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Offline Baladya

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1338 on: May 25, 2010, 05:09:26 pm »
Quote from: Raywin on May 25, 2010, 05:06:28 pm
Ohh got it.. :) but is tht a rule or something?

Actually its based on a rule that i cannot explain because its hard and very long. But if anyone can link plz...  It has to do with the magnetic effect of a current and how that if two coils are together the magnetic field will interact and bla bla
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1339 on: May 25, 2010, 05:09:42 pm »
Quote from: 8T on May 25, 2010, 05:00:23 pm
Thanks for pointing it out :)
Help with M 05 q 36? www.freeexampapers.us/IGCSE/Physics/CIE/2005%20Jun/0625_s05_qp_1.pdf

u got 32 right ..??


Q 36) Ok if u see on both the rods the coil is wrapped around is exactly similar so the poles forming on the right side and the left side would be opposite

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Offline Raywin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1340 on: May 25, 2010, 05:10:16 pm »
Quote from: A@di on May 25, 2010, 05:07:11 pm
Check the diagram same post

Ummm.. which hand do v use to find the north out? cause if i use my right hand my thumb points to the left.. O.O
« Last Edit: May 25, 2010, 05:11:55 pm by Raywin »
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Offline Baladya

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1341 on: May 25, 2010, 05:12:09 pm »
i call it the flimingo left hand rule  ;D
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1342 on: May 25, 2010, 05:13:07 pm »
Quote from: Raywin on May 25, 2010, 05:10:16 pm
Ummm.. which hand do v use to find the north out? cause if i use my right hand my thumb points to the left.. O.O

right hand .. its pointing towards left right .. ??
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Offline diva_sparkles

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1343 on: May 25, 2010, 05:14:52 pm »
Quote from: Baladya on May 25, 2010, 05:12:09 pm
i call it the flimingo left hand rule  ;D

lol its actualy fleming's hand rule

left hand is used to find out the force
right hand to find out current
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Offline Raywin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1344 on: May 25, 2010, 05:15:11 pm »
Quote from: ~VIN1094~ on May 25, 2010, 05:13:07 pm
right hand .. its pointing towards left right .. ??

YEAH! the right hand points to the left. But in tht diagram it says itll point to the right.. :S
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Offline 8T

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1345 on: May 25, 2010, 05:16:06 pm »
Quote from: ~VIN1094~ on May 25, 2010, 05:09:42 pm
u got 32 right ..??


Q 36) Ok if u see on both the rods the coil is wrapped around is exactly similar so the poles forming on the right side and the left side would be opposite


Yes thanks Both A@di & Vin :]
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Offline Baladya

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1346 on: May 25, 2010, 05:16:30 pm »
Quote from: diva_sparkles on May 25, 2010, 05:14:52 pm
lol its actualy fleming's hand rule

left hand is used to find out the force
right hand to find out current

REALLYY  :o :o I never knew that :S
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Offline Ghost Of Highbury

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1347 on: May 25, 2010, 05:16:49 pm »
Quote from: Raywin on May 25, 2010, 05:15:11 pm
YEAH! the right hand points to the left. But in tht diagram it says itll point to the right.. :S

[edited]
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Offline jellybeans

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1348 on: May 25, 2010, 05:17:28 pm »
, hi again; helpppp please? :) :) :)
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Offline Baladya

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #1349 on: May 25, 2010, 05:17:58 pm »
Quote from: diva_sparkles on May 25, 2010, 05:14:52 pm
lol its actualy fleming's hand rule

left hand is used to find out the force
right hand to find out current

Wait, so for a generator what do we use and for a motor which do we use?
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