Hi all,
I've just got into another book on electronics, but I've come into a wee problem with the maths, in one part.
Re. sinusoidal signals, I believe the equation to find the voltage is:
V=Asin2∏ft
That's fine with me. However, what I don;t quite understand is when you need to knwo the voltage at some arbitrary point in time, ie when t=0. The book says that the equation requires a phase in this equation:
V=Asin(2∏ft+ϕ)
What I don't understand is the need for the 2∏ft, as if t=0 then the whole bracket would come to θ!
I'm clearly missing something here, could someone explain this to me please?
The book is The Art of Electronics, by Horowitz and Hill.
Thanks in advance,
Sparky
I've just got into another book on electronics, but I've come into a wee problem with the maths, in one part.
Re. sinusoidal signals, I believe the equation to find the voltage is:
V=Asin2∏ft
That's fine with me. However, what I don;t quite understand is when you need to knwo the voltage at some arbitrary point in time, ie when t=0. The book says that the equation requires a phase in this equation:
V=Asin(2∏ft+ϕ)
What I don't understand is the need for the 2∏ft, as if t=0 then the whole bracket would come to θ!
I'm clearly missing something here, could someone explain this to me please?
The book is The Art of Electronics, by Horowitz and Hill.
Thanks in advance,
Sparky