Commercial and industrial businesses with greater electricity needs prefer three phase power because it is more efficient and less expensive to operate. But what exactly is the difference between single-phase and 3-phase power? 1-Phase vs 3-Phase. To illustrate the difference between single phase and three phase, imagine a lone paddler in a canoe. Phase V 2021 will take us into these challenges from a leadership perspective and explore the character strengths and actions necessary to address them. For the first time, Phase V will take place virtually, but we will continue to have opportunities for engagement, networking and learning from both invited speakers and each other.
Some functions (like Sine and Cosine) repeat forever
and are called Periodic Functions.
The Period goes from one peak to the next (or from any point to the next matching point):
The Amplitude is the height from the center line to the peak (or to the trough). Or we can measure the height from highest to lowest points and divide that by 2.
The Phase Shift is how far the function is shifted horizontally from the usual position.
The Vertical Shift is how far the function is shifted vertically from the usual position.
We can have all of them in one equation:
y = A sin(B(x + C)) + D
And here is how it looks on a graph:
Note that we are using radians here, not degrees, and there are 2π radians in a full rotation.
This is the basic unchanged sine formula. A = 1, B = 1, C = 0 and D = 0
So amplitude is 1, period is 2π, there is no phase shift or vertical shift:
Instead of x we can have t (for time) or maybe other variables:
First we need brackets around the (t+1), so we can start by dividing the 1 by 100:
3 sin(100t + 1) = 3 sin(100(t + 0.01))
Now we can see:
And we get:
Frequency is how often something happens per unit of time (per '1').
So the Frequency is 4
And the Period is 14Overcooked 2 free.
In fact the Period and Frequency are related:
Frequency = 1Period
Period = 1Frequency
The period is 0.02π
So the Frequency is 10.02π = 50π
Some more examples:
When frequency is per second it is called 'Hertz'.
The faster it bounces the more it 'Hertz'!