## Circuit Lab B/C

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1518
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Restarting... what force is exerted between two protons one meter apart?

krasabnk
Member
Posts: 31
Joined: March 4th, 2018, 10:08 am
State: NC

### Re: Circuit Lab B/C

Restarting... what force is exerted between two protons one meter apart?
Using Coulomb's law and knowing protons are elementary charges.... F = (9x10^9)(1.6x10^-19)(1.6x10^-19) / (1)^2... Would the answer be 2.30x10-28 N?
DaVinci's Dragons 2019
```[b]2019: [/b]
regionals/states
<3 Herpetology: 1/3
:evil: Circuit Lab 5/15
:?: Experimental Design -/19

[b]2018: [/b]
regionals/ states
<3 Herpetology: 1/4
:?: Disease Detectives: 4/19```

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1518
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Restarting... what force is exerted between two protons one meter apart?
Using Coulomb's law and knowing protons are elementary charges.... F = (9x10^9)(1.6x10^-19)(1.6x10^-19) / (1)^2... Would the answer be 2.30x10-28 N?

krasabnk
Member
Posts: 31
Joined: March 4th, 2018, 10:08 am
State: NC

### Re: Circuit Lab B/C

C Only

Given this orientation of an operational amplifier, find the value of Rf (in kΩ) if the Vin = 20 mV, Rg = 3.8 kΩ, and Vout = 64 mV
(sorry for my bad drawing, haha)
DaVinci's Dragons 2019
```[b]2019: [/b]
regionals/states
<3 Herpetology: 1/3
:evil: Circuit Lab 5/15
:?: Experimental Design -/19

[b]2018: [/b]
regionals/ states
<3 Herpetology: 1/4
:?: Disease Detectives: 4/19```

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1518
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Given this orientation of an operational amplifier, find the value of Rf in kΩ if the Vin = 20 mV, Rg = 3.8 kΩ, and Vout = 64 mV
(sorry for my bad drawing, haha)
I love this drawing
`8.36 kiloohms?`

krasabnk
Member
Posts: 31
Joined: March 4th, 2018, 10:08 am
State: NC

### Re: Circuit Lab B/C

I love this drawing
`8.36 kiloohms?`
Thank you, haha!
DaVinci's Dragons 2019
```[b]2019: [/b]
regionals/states
<3 Herpetology: 1/3
:evil: Circuit Lab 5/15
:?: Experimental Design -/19

[b]2018: [/b]
regionals/ states
<3 Herpetology: 1/4
:?: Disease Detectives: 4/19```

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1518
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Simplify the following logical expression in terms of only AND and OR: XOR(A, XOR(B, AND(NOT(OR(A, B)), NOT(XOR(B, NOT(AND(A, A)))))))

wec01
Member
Posts: 205
Joined: February 22nd, 2019, 4:02 pm
State: VA

### Re: Circuit Lab B/C

Simplify the following logical expression in terms of only AND and OR: XOR(A, XOR(B, AND(NOT(OR(A, B)), NOT(XOR(B, NOT(AND(A, A)))))))
`OR(AND(NOT(A), B), AND(B, NOT(A)))`
2019 Nationals Medals:
4th place Fossils
5th place Sounds of Music
2nd place Thermodynamics

UTF-8 U+6211 U+662F
Exalted Member
Posts: 1518
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

### Re: Circuit Lab B/C

Simplify the following logical expression in terms of only AND and OR: XOR(A, XOR(B, AND(NOT(OR(A, B)), NOT(XOR(B, NOT(AND(A, A)))))))
`OR(AND(NOT(A), B), AND(B, NOT(A)))`
Oops, I forgot to specify you could use NOT too. Looks right, your turn!

wec01
Member
Posts: 205
Joined: February 22nd, 2019, 4:02 pm
State: VA

### Re: Circuit Lab B/C

Suppose you find an LED whose datasheet contains the above graph. What value resistor should you put in series with this LED and a 5V power source in order to have a current of 20 mA going through the circuit.
2019 Nationals Medals:
4th place Fossils
5th place Sounds of Music
2nd place Thermodynamics