anonymous
  • anonymous
For the circuit below, each branch has equal resistance. What value of resistance (R) will produce an equivalent resistance of 33.3 Ω?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[V, R!,R2, are the resistors on the circuit and they are blank\]
anonymous
  • anonymous
V,R1,R2 are the resistors on the circuit and the are blank
radar
  • radar
Besides telling you they are equal, do they have a value assigned to any of them? Or is the voltage and current given? You are missing information needed to solve this problem.

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More answers

anonymous
  • anonymous
are the resistors in series or parallel
anonymous
  • anonymous
sorry they are parallel and they have no value I couldn't upload a picture but are two circuits R1, R2 and Voltage and there is no current given
anonymous
  • anonymous
each resistor is 100 ohms
anonymous
  • anonymous
(1 )/( R_T )=1/R_1 +1/R_2 +1/R_3
anonymous
  • anonymous
.is it three resistor or two. i did for three.
anonymous
  • anonymous
its only two
anonymous
  • anonymous
i am not getting to see the circuit if it two then each is around 67 ohms.
anonymous
  • anonymous
is there a way i can upload it here
anonymous
  • anonymous
do you understand the formular i put there. it is a given if two resistor in parallel with the same value you divide by two if it 3 with the same value divide by 3.
anonymous
  • anonymous
what subject is that?
anonymous
  • anonymous
yes i understand the forumla but my biggest issue was finding the value of the two resistors because all was given was the equivalnent resistance of 33.3 ohms this is for my ECET class at devry.
anonymous
  • anonymous
but its physics it just sucks because my professor is really not that good at responding back and the book that we have is really not great for sshowing you how to do things
anonymous
  • anonymous
ok.
radar
  • radar
We are making some assumptions. For example if the two resistors were 400 ohms the added resistor to make an equivalent amount of resistance of 33.3 would be a 40 Ohms. Check it out
anonymous
  • anonymous
yes rada that it we want to add a 3rd resistor but we only given two in parallel and the total. we were not ask what value should we add to get 33.3ohms.
anonymous
  • anonymous
i tried to jput it as my profile picture lol but its to small
radar
  • radar
The assumption was that the two were 100 Ohm and a 3rd 100 ohm would indeed be a 100 ohm, but there are many other possibilities.
radar
  • radar
I thought we were given a circuit with two branches with resistors and requested what would be the value of a resistor to connect to a third branch to make the equivalent resistance 33.3 Ohms.
anonymous
  • anonymous
_________________ | | | V| R1{ R2 { | | | | | | | | | |______ |_________ |
radar
  • radar
I guess if the third resistor had to equal the other two, then 100 can be the only answer
anonymous
  • anonymous
ok its not perfect but thats how it looks
radar
  • radar
Does it say that the three resistors have to be equal?
anonymous
  • anonymous
no it says that the two resistors have to be equal
anonymous
  • anonymous
I have one that says that is the same as this one that has three branchs that have to be equal but for this problem it only request two branches to be equal
anonymous
  • anonymous
this is where i kept getting confused because the book doesn't explain this and I couldn't figure out what to do.
radar
  • radar
Well 100 for each will work, so will 400 for the two and 40 for the third.
anonymous
  • anonymous
if you have any more question email me at lavicrep5@hotmail.com
anonymous
  • anonymous
radar read the question again. i think we might confuse the person.
anonymous
  • anonymous
see thats what i thought last night about 100 for both but then when you add them up and then divide them they don't come out to 33.3 if i divide 3 from 100 I come up with 33.3
radar
  • radar
I've read it agaIn and I find it confusing? Is the final circuit to be 2 or 3 resistors?
radar
  • radar
The resistors are connected in the parallel configuration (branches rather then series.
radar
  • radar
The total resistance of parallel connected resistors will be less than the smallest resistor.
anonymous
  • anonymous
just 2
radar
  • radar
Also the total resistance is the recripocal of the sum of the reciprocal values.
anonymous
  • anonymous
yes so i thought that if i divided 33.3 that would give me my answer for the two resistors but i was not sure about that
radar
  • radar
O.K then they would be 66 2/3 ohms each. Like resistors when connected parallel, the total can be computed by dividing the resistor value by the number of resistors.
anonymous
  • anonymous
ok. i think that the final result
radar
  • radar
prcival, did you find the wording of the problems sort of confusing?
anonymous
  • anonymous
yep it is confusing. you get to know your circuit to sort it out. it was left for too many interpretations.
anonymous
  • anonymous
tell me about i had to reread it a couple of times to make sure i was looking at it right
anonymous
  • anonymous
thank you for helping me because i was completly lost
anonymous
  • anonymous
so i would just do the same thing for the three resistors correct
anonymous
  • anonymous
percival I had sent you a pic of the circuit did you receive it
anonymous
  • anonymous
yes. do you have more?
anonymous
  • anonymous
yes i have another one just like the one we did earlier but its with three resistors but its the same problem
anonymous
  • anonymous
so i made all of them 100 then divde by three is that correct
anonymous
  • anonymous
ok then in that case you multiply the total by 3. remind you if they are is series you cannot multiply youhave to divide and that only work when the rsistor values are the same.
anonymous
  • anonymous
yep.
anonymous
  • anonymous
cool i so understand now you have been a life saver
anonymous
  • anonymous
you welcome feel free to email me questions.
anonymous
  • anonymous
i will you guys just don;t know how relieved I am now to finally understand this
anonymous
  • anonymous
Answer is 66.6 ohms. If you have 2 resistors with the same value,for a sample;R1=50 and R2=50 ,just divide one on half,50/2=25. In your problem 66.6/2=33.3 ohms. Or you can do this way R1xR2/R1+R2=66.6x66.6/66.6+66.6=33.3 Ohms.
anonymous
  • anonymous
Answer is 66.6 ohms. If you have 2 resistors with the same value,for a sample;R1=50 Ohm and R2=50 Ohm ,just divide one on half,50/2=25 Ohm ,total resistance. In your problem 66.6/2=33.3 ohms.R1=66.6 Ohm,R2=66.6 Ohm Or you can do this way R1xR2/R1+R2=66.6x66.6/66.6+66.6=33.3 Ohms is the total resistance in the circuit.

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