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Author Topic: IGCSE PHYSICS  (Read 23647 times)

nid404

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Re: IGCSE PHYSICS
« Reply #135 on: November 08, 2009, 12:46:47 pm »
Quote from: moon on November 08, 2009, 12:41:40 pm
plz can u help in Jun.01   Q.8 a(ii) and how to measure theamplitude in compression and rarefaction?

don't hav the paper...could u upload it
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Offline @d!_†oX!©

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Re: IGCSE PHYSICS
« Reply #136 on: November 08, 2009, 12:53:01 pm »
i dont have the paper....nd its not on fep....so post the question here if possible....
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Offline moon

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Re: IGCSE PHYSICS
« Reply #137 on: November 08, 2009, 12:56:12 pm »
Here is the question

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Offline Ghost Of Highbury

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Re: IGCSE PHYSICS
« Reply #138 on: November 08, 2009, 12:58:10 pm »
Quote from: xXFaKeXx on November 08, 2009, 11:12:07 am
wat is da minimum voltage required to switch on the transistor???????

is it 0.6V

if no, what is 0.6V for?
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Offline ~~~~shreyapril~~~~

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Re: IGCSE PHYSICS
« Reply #139 on: November 08, 2009, 01:00:57 pm »
where is 0.6V??

it is 0.6W
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Offline cooldude

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Re: IGCSE PHYSICS
« Reply #140 on: November 08, 2009, 01:01:21 pm »
Quote from: A@di on November 08, 2009, 12:58:10 pm
is it 0.6V

if no, what is 0.6V for?


aadi its given in the guide for that specific model, it varies from model to model, for the one which u say ( i think ur talking about the guides transistor) then for that it is. they shud give u the voltage in the exam
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Offline Ghost Of Highbury

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Re: IGCSE PHYSICS
« Reply #141 on: November 08, 2009, 01:08:33 pm »
I = P/V = 0.6/1.5 = 0.4A


R = V/I => 4/0.4 = 10 ohms

@cooldude - ohh..okk..thanks
« Last Edit: November 08, 2009, 01:11:08 pm by A@di »
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Offline ~~~~shreyapril~~~~

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Re: IGCSE PHYSICS
« Reply #142 on: November 08, 2009, 01:10:39 pm »
adithe ans is easy!
charge flowing is 0.6*20=1.2C
 and i am just solving the current ka problem!!
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Offline @d!_†oX!©

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Re: IGCSE PHYSICS
« Reply #143 on: November 08, 2009, 01:12:00 pm »
so the question is solved rite??!!was easy By the way
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Offline Ghost Of Highbury

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Re: IGCSE PHYSICS
« Reply #144 on: November 08, 2009, 01:12:22 pm »
Quote from: ~~~~shreycool~~~~ on November 08, 2009, 01:10:39 pm
adithe ans is easy!
charge flowing is 0.6*20=1.2C
 and i am just solving the current ka problem!!

abbe oye, i have solved the question, and that 0.6V ka is minimum volts for transistors..not this q ka..check the quoted post dude!!
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Offline ~~~~shreyapril~~~~

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Re: IGCSE PHYSICS
« Reply #145 on: November 08, 2009, 01:13:07 pm »
ohh..!!
got it!!
By the way wats the current then!!
0.4 rite?
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Offline Ghost Of Highbury

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Re: IGCSE PHYSICS
« Reply #146 on: November 08, 2009, 01:14:05 pm »
he didnt ask that. check wat te q says yaar!!
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Offline holychalice

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Re: IGCSE PHYSICS
« Reply #147 on: November 08, 2009, 01:16:04 pm »
d charge ans is 8C ,,, 0.4*20 = 8
nd yea .. aadi has don't d rest
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Offline ~~~~shreyapril~~~~

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Re: IGCSE PHYSICS
« Reply #148 on: November 08, 2009, 01:16:19 pm »
kk..!!
i did not read the resistance ka part!!
yu solved first two i did the last one!!

its k!!

easy question i guess!!
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Offline ~~~~shreyapril~~~~

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Re: IGCSE PHYSICS
« Reply #149 on: November 08, 2009, 01:17:26 pm »
Quote from: M.@.N.ß.i.R. on November 08, 2009, 01:16:04 pm
d charge ans is 8C ,,, 0.4*20 = 8
nd yea .. aadi has don't d rest
charge = power * tmie!!!

that is 0.6*20!!!

this time i read the question!!!
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