To visualize a voltage over time sine wave with an amplitude of 20V and a frequency of 50 Hz, we can plot the waveform for one complete cycle, which corresponds to 360 degrees or 2π radians.
In this case, the equation for the voltage waveform can be represented as:
V(t) = A * sin(2πft)
where: V(t) is the voltage at time t, A is the amplitude (20V in this case), f is the frequency (50 Hz).
To plot the waveform, we can choose a time interval and calculate the voltage at each point within that interval. Here, I'll choose a time interval of 1/50 second (the period of the wave) to represent one complete cycle.
The diagram below shows the voltage over time sine wave for one cycle, with an amplitude of 20V and a frequency of 50 Hz:
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