Suppose a sine wave of the form y = A*sin(k) with
It's typical of a sine wave that it's periodic, which means the function y repeats itself after a certain period. This period is equal to 2*pi or 360°, for example:
for k = pi/2, 5*pi/2, 9*pi/2, ... the value of y will be the same and equal to A (notice that 5*pi/2 = pi/2 + 2*pi and 9*pi/2 = 5*pi/2 + 2*pi)
In physics it's a more common practice to write a sine wave as y = A*sin(omega*t) with omega the angular frequency specified in radians/s (omega refers to the Greek letter) and t the time specified in seconds.
Now, when you want to calculate the frequency f of a sine wave (which is not equal to the angular frequency) or in other words the number of complete cycles that occur per second (specified in cycle/s or s-1 or Hz), you need to know the time T required to complete one full cycle (specified in s/cycle or just s or Hz-1). The frequency f is then equal to 1/T.
Knowing omega you can calculate the frequency in a different and more common way:
since the sine wave is periodic and after a time T one cycle has been completed (thus one period), it follows that omega*T = 2*pi for the function y to have the same value after one period (the function y having the same value is equal to completing one cycle).
Let's rearrange this formula by bringing 2*pi to the left and T to the right, so we get:
omega/(2*pi) = 1/T and since 1/T = f we finally get:f = omega / (2*pi)
here is the formula modulation index=peak freq deviation/operating freq. frm this we can calculate freq dev
The difference is in sine wave generation algorithm. In HI freq - it is 30kHz signal, modulated by 50Hz.
i dont know,,,give me ans
By shifting the sine wave by 45 degrees.
I linked a picture of a sine wave below.
Well, a pure sine wave can only be produced as a pure sine wave. If it was modified to begin with, it would never be a pure sine wave. However, an actual generator should be supplying pure sine wave output, while something such as an inverter would be producing a modified sine wave.
The voice is not a sine wave.
A: by over driving the sine wave through a buffer
sine wave is the alternating current wave which is belongs to sinusoidal function.
A sine wave is a mathematical function that describes a smooth repetitive oscillation which looks like a wave going from 1 to -1 and back to 1. A normal sine wave is much like a sine wave but has been normalized for practical uses like in electronics creating a "squared" sine wave A perfect sine wave does not exist in reality, it only exists in the minds of mathematicians.
A sine wave is the graph of y = sin(x). It demonstrates to cyclic nature of the sine function.
It is a sine wave.
A square wave can be changed into a sine wave by either active filtering [recomended] or passive filtering.
a phase shifted sine wave of a different amplitude.
The sine wave, with its repeating pattern, can represent a single frequency with no harmonics.
There are 360 degrees in one cycle of a sine wave.
it's a sine wave
A sine wave has no harmonics. It only has a fundamental, so the value of the 2nd, 3rd, and 12th harmonics of a sine wave is zero.
It's called a sine wave because the waveform can be reproduced as a graph of the sine or cosine functions sin(x) or cos (x).
The differential of the sine function is the cosine function while the differential of the cosine function is the negative of the sine function.
The SINE WAVE.
The fourier series of a sine wave is 100% fundamental, 0% any harmonics.
as stated pure is like a perfect circle. a stepped sine wave will be increased toa value and increased in steps of any value.