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July 19, 2025, 09:20:18 am
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Author Topic: General questions thread (fk u vcaa)  (Read 10670 times)  Share 

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jinny1

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General questions thread (fk u vcaa)
« on: June 14, 2011, 01:47:30 pm »
How the hell do u do first elec question??
« Last Edit: June 14, 2011, 02:03:02 pm by ninwa »
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dopplereffect

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Re: WTF ELECTRICITY
« Reply #1 on: June 14, 2011, 01:49:54 pm »
Show that?
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jinny1

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Re: WTF ELECTRICITY
« Reply #2 on: June 14, 2011, 01:51:19 pm »
I dun get how it equalled 3.3 ohms!!!!!
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dopplereffect

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Re: WTF ELECTRICITY
« Reply #3 on: June 14, 2011, 01:52:31 pm »
2+ 1/(1/2 + 1/(2+ 2)) =3. 33333
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Keki

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Re: WTF ELECTRICITY
« Reply #4 on: June 14, 2011, 01:53:25 pm »
Question was
Input Voltage = 10v
Resistors 2.0 ohms
Someone draw the diagram, im using my iPhone :p
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jinny1

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Re: Genetal questions thread (fk u vcaa)
« Reply #5 on: June 14, 2011, 01:56:08 pm »
Fml
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davidle_10

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Re: Genetal questions thread (fk u vcaa)
« Reply #6 on: June 14, 2011, 02:02:05 pm »
The resistance in the parallel circuit is
1/Rp=1/2 +1/4 =2/4+1/4 =3/4
Rp=4/3
Rtotal=4/3+2=10/3=3.3
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jinny1

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Re: Genetal questions thread (fk u vcaa)
« Reply #7 on: June 14, 2011, 02:04:25 pm »
.... I cudnt do the other questions cuz i didnt knoe te first..
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Puraimaru

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Re: General questions thread (fk u vcaa)
« Reply #8 on: June 14, 2011, 02:05:20 pm »
I have a question! =D


In the Electricity Question.. to do with the LED/Variable Resistor.. how do you explain that it was modulation? =S


P.S Further Electronics gave me a Butt Rape >.>! how was Relativity + Structures?
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dmanz

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Re: General questions thread (fk u vcaa)
« Reply #9 on: June 14, 2011, 02:09:29 pm »
Quote from: jinny1 on June 14, 2011, 02:04:25 pm
.... I cudnt do the other questions cuz i didnt knoe te first..

why not? it was a show that question. So it gave you the RT which was 3.3. use that.

That question is just asking you to to find out how they got 3.3.

also those stupid spring graphs. grrrrrr/fml
« Last Edit: June 14, 2011, 02:12:21 pm by dmanz »
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davidle_10

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Re: General questions thread (fk u vcaa)
« Reply #10 on: June 14, 2011, 02:11:32 pm »
Quote from: Puraimaru on June 14, 2011, 02:05:20 pm
I have a question! =D


In the Electricity Question.. to do with the LED/Variable Resistor.. how do you explain that it was modulation? =S


Well I explained that the variation in brightness of the LED was the modulation
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jinny1

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Re: General questions thread (fk u vcaa)
« Reply #11 on: June 14, 2011, 02:13:28 pm »
Quote from: dmanz on June 14, 2011, 02:09:29 pm
Quote from: jinny1 on June 14, 2011, 02:04:25 pm
.... I cudnt do the other questions cuz i didnt knoe te first..

why not? it was a show that question. So it gave you the RT which was 3.3. use that.


That question is just asking you to to find out how they got 3.3.

also those stupid spring graphs. grrrrrr/fml


Becuz i didnt know which was in series or parallel. I assumed that B,C,D were all in parallel.
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Puraimaru

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Re: General questions thread (fk u vcaa)
« Reply #12 on: June 14, 2011, 02:16:34 pm »
Quote from: davidle_10 on June 14, 2011, 02:11:32 pm
Quote from: Puraimaru on June 14, 2011, 02:05:20 pm
I have a question! =D


In the Electricity Question.. to do with the LED/Variable Resistor.. how do you explain that it was modulation? =S


oh, okay. darn it!

Well I explained that the variation in brightness of the LED was the modulation
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Asx4Life

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Re: General questions thread (fk u vcaa)
« Reply #13 on: June 14, 2011, 02:27:17 pm »
for the question with a weird resistance graph, do we draw the opposite graph of that - except without touching x-axis and also cuvy instead of pointy? and then the question after that says why it is a modulation and state the modulater. what was the modulater? 
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ttn

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Re: General questions thread (fk u vcaa)
« Reply #14 on: June 14, 2011, 02:31:57 pm »
I think you meant carrier wave? I wrote it was the LED's light.
For the graph I drew it still pointy, because power is proportional to current?
Now I just realised the voltage across it will change also... so dunno.
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