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Author Topic: ALL PHYSICS DOUBTS - POST HERE !!  (Read 230228 times)

6394

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2340 on: May 27, 2010, 01:14:35 am »
soreee 2 disturb kazim bt ans this : wen less temp , more res.less voltage n vic versa ryt--> for thermistor
so circuit wont switch on
« Last Edit: May 27, 2010, 01:16:46 am by 6394 »
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Offline NidZ- Hero

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2341 on: May 27, 2010, 01:15:14 am »
Quote from: Syed Kazim on May 27, 2010, 01:06:50 am
BC+DC=17.5m/s
but y i dunt understand
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Offline Ivo

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2342 on: May 27, 2010, 01:17:32 am »
Quote from: Ivo on May 27, 2010, 12:09:06 am
The 22,000V thing, is it equally supplied to each of the lines.  Also, what's defined as p.d. betweeen the pair of wires, I don't get taht

Please can someone answer my doubt.  Many thanks
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6394

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2343 on: May 27, 2010, 01:22:18 am »
Quote from: Ivo on May 27, 2010, 01:17:32 am
Please can someone answer my doubt.  Many thanks

is dat from 09 o n
because i hve de sam doubt
e part
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Offline Ivo

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2344 on: May 27, 2010, 01:24:02 am »
Quote from: 6394 on May 27, 2010, 01:22:18 am
is dat from 09 o n
because i hve de sam doubt
e part

yes, w09.  What's the 22,000V about?
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Always willing to help!  8)
"In helping others, we shall help ourselves, for whatever good we give out completes the circle and comes back to us."

6394

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2345 on: May 27, 2010, 01:50:05 am »
ivo wats tym dere n wen s ur ppr
??
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6394

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2346 on: May 27, 2010, 01:56:03 am »
ok ppl gud luk
dint sleep at nyt =P
pray 4 me
Talk to you later
Take care

 :) :) :) :) :) ;) ;) ;) ;) ;) :D :D :D :D :D ::) ::) ::) ::) :P :P :P
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Offline J.Darren

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2347 on: May 27, 2010, 04:29:38 am »
Quote from: 6394 on May 27, 2010, 01:22:18 am
is dat from 09 o n
because i hve de sam doubt
e part
From part b we have found the current in one of the transmission lines to be 2.5 A using the equation P = IV. From part c we have found the power loss to be 18.75W using the equation P = I^2 R. From part d we have found the voltage drop to be 7.5 V using the equation V = IR. The voltage drop here is referring to the voltage at thje receiving end of the transmission lines, a pair of transmission lines will have a voltage drop of 7.5 * 2 = 15 V, the answer would then be 22000 - 15 = 21985 V.
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Offline jellybeans

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2348 on: May 27, 2010, 05:05:15 am »
HI@@@ URGENT.
WHEN DO WE USE SINR / SINI?

from MEDIUM TO AIR?
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Offline Girlie45

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2349 on: May 27, 2010, 05:11:59 am »
When is acceleration increasing in a speed/time graph ???  ???
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Offline CatAly$t

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2350 on: May 27, 2010, 07:11:11 am »
Quote from: jellybeans on May 27, 2010, 05:05:15 am
HI@@@ URGENT.
WHEN DO WE USE SINR / SINI?

from MEDIUM TO AIR?

sin i/sin r


to find the refractive index of a substance.....
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Offline CatAly$t

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2351 on: May 27, 2010, 07:19:17 am »
Quote from: Girlie45 on May 27, 2010, 05:11:59 am
When is acceleration increasing in a speed/time graph ???  ???

when the gradient is positive...
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2352 on: May 27, 2010, 08:01:27 am »

Hey sup guys hows everything going ?? :D
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Offline lalala

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2353 on: May 27, 2010, 08:02:32 am »
guys..i think its been 24 hours :P can i discuss something abt phy p1?
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Offline Vin

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Re: ALL PHYSICS DOUBTS - POST HERE !!
« Reply #2354 on: May 27, 2010, 08:12:52 am »
Quote from: lalala on May 27, 2010, 08:02:32 am
guys..i think its been 24 hours :P can i discuss something abt phy p1?

Let the MODERATORS agree to it ..   :)

then discuss it here .. ;)

https://studentforums.biz/index.php/topic,7273.2700.html
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