## Circuit Lab B/C

PM2017
Member
Posts: 483
Joined: January 20th, 2017, 5:02 pm
State: CA

### Re: Circuit Lab B/C

2018 Events

2019 Events

--
West High School Science Olympiad (Alum, as of Saturday)

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1455
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Jacobi wrote:Choose one famous circuit scientist and list his major accomplishment.

Edit: Oh, beaten to it

Jacobi
Exalted Member
Posts: 137
Joined: September 4th, 2018, 7:47 am
State: -

### Re: Circuit Lab B/C

PM2017 wrote:

Looks good.

PM2017
Member
Posts: 483
Joined: January 20th, 2017, 5:02 pm
State: CA

### Re: Circuit Lab B/C

UTF-8 U+6211 U+662F wrote:
Jacobi wrote:Choose one famous circuit scientist and list his major accomplishment.

Edit: Oh, beaten to it

You can actually go ahead and make the next question. I'm short on time rn.
2018 Events

2019 Events

--
West High School Science Olympiad (Alum, as of Saturday)

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1455
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Okay. suppose you have three nodes arranged in a triangle shape with a 5-kohm resistor connecting nodes 1 and 2, a 6-kohm resistor connecting nodes 2 and 3, and a 7-kohm resistor connecting nodes 3 and 1. Build a new circuit with the same resistance between nodes but in a Y shape so that nodes 1, 2, and 3 are all one resistor away from a central node. (Sorry for the lack of diagram.)

Jacobi
Exalted Member
Posts: 137
Joined: September 4th, 2018, 7:47 am
State: -

### Re: Circuit Lab B/C

UTF-8 U+6211 U+662F wrote:Okay. suppose you have three nodes arranged in a triangle shape with a 5-kohm resistor connecting nodes 1 and 2, a 6-kohm resistor connecting nodes 2 and 3, and a 7-kohm resistor connecting nodes 3 and 1. Build a new circuit with the same resistance between nodes but in a Y shape so that nodes 1, 2, and 3 are all one resistor away from a central node. (Sorry for the lack of diagram.)

From Node x to center:
Node 1

Node 2

Node 3

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1455
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Jacobi wrote:
UTF-8 U+6211 U+662F wrote:Okay. suppose you have three nodes arranged in a triangle shape with a 5-kohm resistor connecting nodes 1 and 2, a 6-kohm resistor connecting nodes 2 and 3, and a 7-kohm resistor connecting nodes 3 and 1. Build a new circuit with the same resistance between nodes but in a Y shape so that nodes 1, 2, and 3 are all one resistor away from a central node. (Sorry for the lack of diagram.)

From Node x to center:
Node 1

Node 2

Node 3

That's not what I got :/

Jacobi
Exalted Member
Posts: 137
Joined: September 4th, 2018, 7:47 am
State: -

### Re: Circuit Lab B/C

UTF-8 U+6211 U+662F wrote:
Jacobi wrote:
UTF-8 U+6211 U+662F wrote:Okay. suppose you have three nodes arranged in a triangle shape with a 5-kohm resistor connecting nodes 1 and 2, a 6-kohm resistor connecting nodes 2 and 3, and a 7-kohm resistor connecting nodes 3 and 1. Build a new circuit with the same resistance between nodes but in a Y shape so that nodes 1, 2, and 3 are all one resistor away from a central node. (Sorry for the lack of diagram.)

From Node x to center:
Node 1

Node 2

Node 3

That's not what I got :/

I'm assuming that the resistors in the Y are in series. That means that
Calcs

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1455
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Jacobi wrote:
UTF-8 U+6211 U+662F wrote:
Jacobi wrote:From Node x to center:
Node 1

Node 2

Node 3

That's not what I got :/

I'm assuming that the resistors in the Y are in series. That means that
Calcs

You're forgetting that node 1 in the triangle is connected to node 3 in two different ways. Use delta-y conversion.

PM2017
Member
Posts: 483
Joined: January 20th, 2017, 5:02 pm
State: CA

### Re: Circuit Lab B/C

Resistor 1

Resistor 2

Resistor 3

Obviously some rounding errors, but if my methods were correct, it should be close enough.
(Also, finally some math. I can finally get into the game!)
2018 Events

2019 Events

--
West High School Science Olympiad (Alum, as of Saturday)

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1455
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

PM2017 wrote:
Resistor 1

Resistor 2

Resistor 3

Obviously some rounding errors, but if my methods were correct, it should be close enough.
(Also, finally some math. I can finally get into the game!)

It's been a while since I calculated the answers, but I think those are right. Your turn!

PM2017
Member
Posts: 483
Joined: January 20th, 2017, 5:02 pm
State: CA

### Re: Circuit Lab B/C

Will post in the evening, I'm at a math competition rn
2018 Events

2019 Events

--
West High School Science Olympiad (Alum, as of Saturday)

MattChina
Member
Posts: 224
Joined: February 12th, 2017, 8:06 am
Division: B
State: NY
Location: somewhere over the rainbow

### Re: Circuit Lab B/C

So lets restart this,

1. What is circuit called, and what is its purpose?
2. Name three waveforms of Alternating current.
3. Name 3 methods of producing static imbalance.
2019 events: Water Quality, Battery Buggy, Elastic Launch Glider, Density Lab, Circuit Lab, Thermodynamics
R.C Murphy Co-Captain
Dank Memes Area Homeschool Team member

Crimesolver
Member
Posts: 95
Joined: July 31st, 2018, 2:07 pm
Division: B
State: CA

### Re: Circuit Lab B/C

MattChina wrote:So lets restart this,

1. What is circuit called, and what is its purpose?
2. Name three waveforms of Alternating current.
3. Name 3 methods of producing static imbalance.

1. A Wheatstone Bridge and it's purpose is to find the mystery resistor, Rx
2. Sine waves, triangular waves, and square waves
3. Rub a balloon on your hair, rub a balloon on a furry carpet, rub a balloon on a wool jacket
Current Events

Keep on going

MattChina
Member
Posts: 224
Joined: February 12th, 2017, 8:06 am
Division: B
State: NY
Location: somewhere over the rainbow

### Re: Circuit Lab B/C

Crimesolver wrote:
MattChina wrote:So lets restart this,

1. What is circuit called, and what is its purpose?
2. Name three waveforms of Alternating current.
3. Name 3 methods of producing static imbalance.

1. A Wheatstone Bridge and it's purpose is to find the mystery resistor, Rx
2. Sine waves, triangular waves, and square waves
3. Rub a balloon on your hair, rub a balloon on a furry carpet, rub a balloon on a wool jacket

All good, but for number three i was looking for like contact, heat induced, pressure induced
2019 events: Water Quality, Battery Buggy, Elastic Launch Glider, Density Lab, Circuit Lab, Thermodynamics
R.C Murphy Co-Captain
Dank Memes Area Homeschool Team member