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Author Topic: IGCSE PHYSICS  (Read 23652 times)

Offline @d!_†oX!©

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Re: IGCSE PHYSICS
« Reply #120 on: November 08, 2009, 11:07:57 am »
don't have notes right now...nd neither wud they help u at the last moment....just ask ur specific doubt here...nd we'll try to solve it....tell us ur doubt
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Offline astarmathsandphysics

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Re: IGCSE PHYSICS
« Reply #121 on: November 08, 2009, 11:08:10 am »
My first attempt at writing ig physics notes
http://www.astarmathsandphysics.com/igcse_physics_notes_menu.html
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Offline xXFaKeXx

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Re: IGCSE PHYSICS
« Reply #122 on: November 08, 2009, 11:12:07 am »
wat is da minimum voltage required to switch on the transistor???????
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Offline @d!_†oX!©

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Re: IGCSE PHYSICS
« Reply #123 on: November 08, 2009, 11:13:53 am »
it varies for each model of transistor...
will be mentioned in the question if required in the calculation
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Offline astarmathsandphysics

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Re: IGCSE PHYSICS
« Reply #124 on: November 08, 2009, 11:14:18 am »
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Offline xXFaKeXx

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Re: IGCSE PHYSICS
« Reply #125 on: November 08, 2009, 11:15:35 am »
ohhh...okay thanks adi
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Offline @d!_†oX!©

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Re: IGCSE PHYSICS
« Reply #126 on: November 08, 2009, 11:22:39 am »
hey guys temme....wats the use of a capacitor in a circuit...
as in the book says its used when a time delay is required....bt wt exactly is a time delay...as in my question is why is the time delay required...any examples of circuits where a time delay is required??
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Offline astarmathsandphysics

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Re: IGCSE PHYSICS
« Reply #127 on: November 08, 2009, 11:35:00 am »
Time delay as in burglar alarm - 20 seconds to close the front door and turn the alarm off before the alarm goes off
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Offline cooldude

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Re: IGCSE PHYSICS
« Reply #128 on: November 08, 2009, 11:35:45 am »
Quote from: @d!_†oX!© on November 08, 2009, 11:22:39 am
hey guys temme....wats the use of a capacitor in a circuit...
as in the book says its used when a time delay is required....bt wt exactly is a time delay...as in my question is why is the time delay required...any examples of circuits where a time delay is required??

it is in an industrial oven. if we opened the door of the oven then a alarm would sound but if the door was opened and closed within the time it took for the capacitor to charge or discharge no alarm would sound. an alarm would be needed if there was a malfunction and if the oven door opened accidentally
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Offline @d!_†oX!©

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Re: IGCSE PHYSICS
« Reply #129 on: November 08, 2009, 11:36:25 am »
ohhhhh.....yeahh....okkk...Thanks sir!! ;D
nd u too cooldude... :)
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Offline cooldude

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Re: IGCSE PHYSICS
« Reply #130 on: November 08, 2009, 11:37:27 am »
Quote from: @d!_†oX!© on November 08, 2009, 11:36:25 am
ohhhhh.....yeahh....okkk...Thanks sir!! ;D
nd u too cooldude... :)

By the way its all in the guide..if uve read it thoroughly :P
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Offline ~~~~shreyapril~~~~

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Re: IGCSE PHYSICS
« Reply #131 on: November 08, 2009, 12:07:55 pm »
are you all refering to physics guide which is red in colour ???

By the way adi i had read the question!!

and tahnk u for mentioninng me in thank list!! :P
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Offline cooldude

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Re: IGCSE PHYSICS
« Reply #132 on: November 08, 2009, 12:14:46 pm »
Quote from: ~~~~shreycool~~~~ on November 08, 2009, 12:07:55 pm
are you all refering to physics guide which is red in colour ???

By the way adi i had read the question!!

and tahnk u for mentioninng me in thank list!! :P

yep the mike folland one
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Offline ~~~~shreyapril~~~~

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Re: IGCSE PHYSICS
« Reply #133 on: November 08, 2009, 12:16:20 pm »
Quote from: cooldude on November 08, 2009, 12:14:46 pm
yep the mike folland one
thats a coool book!!
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Offline moon

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Re: IGCSE PHYSICS
« Reply #134 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?
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