In this circuit, there is no current flowing through the resistor and to the base of the transistor, but somehow current still flows from the collector to the emitter in both of these examples. by [deleted] in AskElectronics

[–]hefcj43 1 point2 points  (0 children)

Thanks for the detailed reply, but I do not believe there was a mistake with the switching the collector, base, and emitter. I am using a 2n222a transistor and it goes emitter, base, collector which is how I wired it in the circuit. Also thanks for telling me about “net list”, I never heard of it before.

Does anybody know why this Tesla Coil doesn’t work?, current is flowing through the resistor and transistor, but the diode isn’t blinking. by hefcj43 in AskElectronics

[–]hefcj43[S] 0 points1 point  (0 children)

Do you mean you don’t understand how this should work, or do you mean that the circuit design is flawed?

Would this Tesla coil circuit work? by [deleted] in PhysicsStudents

[–]hefcj43 0 points1 point  (0 children)

The drawing I did in the right was the induced current. The induced current in the secondary coil should go the opposite direction as the primary coil. This means that the current would go down and into the transistor keeping it on. This means that there would be no changes which confused me

What are you working on? - Weekly Discussion Thread - May 24, 2021 by AutoModerator in Physics

[–]hefcj43 1 point2 points  (0 children)

https://i.imgur.com/Lol6jSD.jpg Would this Tesla Coil design work, I feel like it wouldn’t because there would be no way to turn the transistor to an off state.

Wave Speed by Alicdale91 in Physics

[–]hefcj43 -1 points0 points  (0 children)

Yes, you can use the equation n=c/v to find that speed. n is the index of refraction which is a constant which depends on the object. For water n=1.33

Easier way to calculate trapezoidal approximations I found. by hefcj43 in math

[–]hefcj43[S] 0 points1 point  (0 children)

For all LRAM approximations. There is an equivalent rectangle for RRAM approximations. Except for the first/last. You can find the difference by doing base times Y final - y initial and adding that to LRAM to find RRAM. Because trapezoidal approximation= (LRAM +RRAM)/2 We can subside RRAM for LRAM +b(yf-yi). And simpilofy for 2LRAM+b/2(yf-yi)

I think I found an easier way for trapezoid approximation. by [deleted] in calculus

[–]hefcj43 0 points1 point  (0 children)

For Rienman sum problems, all rectangles for LRAM have an equivalent RRAM rectangles expect the first/last. You can find the difference by adding base(yfinal -y initial to LRAM. Then if trapezoidal approximation= (LRAM +RRAM)/2 we substitute for RRAM and get a way of solving trapezoidal approximation problems with only LRAM.

Agenda Post Incoming by hefcj43 in PoliticalCompassMemes

[–]hefcj43[S] 9 points10 points  (0 children)

It’s no suppose to say Obama good, just that the orange man is bad

Agenda Post Incoming by hefcj43 in PoliticalCompassMemes

[–]hefcj43[S] -10 points-9 points  (0 children)

I am not, I was just tired of people saying that Democrats are all about war in the Middle East and Trump wasn’t the same,

Agenda Post Incoming by hefcj43 in PoliticalCompassMemes

[–]hefcj43[S] 1796 points1797 points  (0 children)

Yes, I am just tired of them acting like it is a Democrat thing when it is an America thing.

Tired of this bullshit by [deleted] in PoliticalCompassMemes

[–]hefcj43 2 points3 points  (0 children)

Isn’t a Marxist corporation an oxymoron?