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Calculate the voltage across R2

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Thread replies: 68
Thread images: 13

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Calculate the voltage across R2
>>
/g/ is not for making your homework.
Also 18+, little one.
>>
>>59428978
Okay, I calculated it.
Now what?
>>
>>59428978
chooo choo
>>
>>59429148
Create a low pass filter.
>>
>>59429168
>Create a low pass filter
how to make voltage meter that can measure signals like PWM or other non flat? I was thinking about making an array and pulling out highest results, but might be problem with aliasing or something like that.
>>
It'll be approx 1.5V

I'm sure any further accuracy will be irrelevant
>>
1 V
>>
>>59429425
See how an oscilloscope works
>>
6v
>>
>>59428978
>Drawing the ground
lol
>>
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Did it with you unhelpful fags
>>
230v
>>
>>59429701
Is equal to the amount of volts required to get your mom's fat ass to move
>>
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Just woke up. Ezpz
>>
>Calculate the voltage
>>
>>59429699
I sincerely hope that your pic is a joke
>>
>>59429618
pretty sure its because its drawn in a circuit simulator, those things don't work without grounding the circuit.
>>
>>59429990
wow, you are so smart, you deserve a special shiny medal
>>
>>59428978

I = 3V/(R1+(R2 || RM))
UR2 = 3V-R1*I
done
>>
>>59430081
No joke, I verified the results with multisim
>>
1.5[V] app.

t.electrical engineer
>>
>>59430684
Your notation is though
>>
>>59430684
>>not using LTSpice
>>
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Alright plebs. Calculate resistance between two red dots. Grid extends forever.
>>
cs fag here. What are the best books to learn this stuff?
>>
>>59431277
-1/12
>>
>>59431277
R
>>
>>59430423
For understanding ohms law? I don't think so.
>>
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>>59431307
Any high school physics book
>>
>>59429699
correct

>>59429990
wrong

takes 2 minutes to verify with circuitlab
>>
>>59431675
jk, first guy was wrong, second was right

also I was wrong because I read 10M as 1M which is also what the guy who was wrong did
>>
>>59431675
If you say so
>>
>>59431706
Oh really? Good for me. I double checked my math so I hoped it was correct
>>
>/g/ - Technology
>Technology
KEK
>>
>>59431196
>Electronics labs at school
>Have to use multisim for pretty much every prelab
>A dozen graphs in each prelab
>Try doing it at home with LTSpice instead
>Interface is dogshit
>Data is formatted in a way that excel can't read it
That shit makes me wanna die
>>
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>>59428978
>>
>>59433982
It's a simple circuit bro no need to bring Kirchoff into this.
>>
>>59428978

V_o = (V_in(R_2 || R_meter)) / (R_1 + (R_2 || R_meter))
>>
>>59428978
I suck at physics, but wouldn't we need to now the actual amperage to be able to reliably calculate the voltage, due to Ohm's law? That's always how we calculated it back in school, I didn't knew it was possible without it.

Also, I'd just use a multimeter.
>>
>>59434226
You have voltage and resistance you can calculate amperage.
>>
>>59431325
kek'd.

>>59431443
no
>>
>>59431307

Entry level EE books.
If you know some basics it's easy enough to get started.
>>
>>59428978
That's high school physics, just do your homework retard
>>
>>59433982
You could have just pararelled and used a voltage divider. Lot simpler.
>>
>>59434226
Nope. You can use voltage division. Or you can use a test current thru each mesh, but that's overkill for such a simple circuit.
>>
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>>>/sci/
>>
How is this physics?
>>
>>59431307
circuit analysis 2nd edition by cunningham/stuller
it's by far the best and only book i have ever used. there is also a solutions manual online that has very detailed steps.
>>
>>59431277
it's R2.
>>
>>59431307
https://www.amazon.com/Advanced-Physics-Tom-Duncan/dp/0719553695
one of the most comprehensive books for an introduction to physics you can find.
>>
>>59428978
isnt this year 11 physics? bro its easy shit just get good.
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>>59440570
nope.
>>
Do your own fucking homework you stupid cunt.
>>
>>59440953
Well if you read the thread you'd see that I did
>>
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>>59431277
I think I've seen something similar...
>10.
Year, there it is.
https://explainxkcd.com/356/
>>
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>>59443810
>what colors would you choose?

THE GOOGLES COLORS OF COURSE!
>>
>>59431277
2/Pi * R
>>
Calculate the voltage across your mums fat tits
>>
>>59428978

A little less then 1.5 Volt.

For any practical purpose this is the right answer.
>>
>>59444071
correct!
>>
>>59429618
It's more of a reference point for simulators where every other voltage gets calculated from.
>>
>>59428978
A tiny bit more than 1.5V.

To get the exact voltage, just compute the equivalent of the 470k and 10M resisters in parallel using the "reciprocal of the sum of the reciprocals" method. Once you have that, you can just use the series resistor voltage drop formula V*(a/(a+b)).

I've never had any EE or physics courses, but isn't this like absolute babby-tier?
>>
>>59431325
>-1/12
Underrated post.
>>
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>>
>>59433982
>using mesh method instead of nodal analysis
Thread posts: 68
Thread images: 13


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