A 120V AC signal (such as at a power socket) is a sine-wave with a peak amplitude of about 170V and -170V or 340V peak-to-peak. A half-wave rectifier is basically a single diode which will clip off one half of the cycle leaving the other with a slight reduction in voltage. A silicon diode has a forward voltage drop of about .7 (seven tenths) of a volt, so if the input signal is 170V peak (340V Peak-to-peak), the output would be about 169.3V peak.
Voltage amplitude is the maximum value of a voltage.
Amplitude
Amplitude Modulation voltage
Voltage Ampere or Voltage Amplitude
The relationship between the amplitude of muscle response and the voltage of the stimulus is generally linear. As the voltage of the stimulus increases, the muscle response increases in amplitude up to a certain point. Beyond that point, further increases in voltage may not significantly increase the muscle response amplitude or could lead to muscle fatigue or damage.
It is the highest value of the amplitude, called the peak value. Scroll down to related links and look at "RMS voltage, peak voltage and peak-to-peak voltage". Look at the figure in the middle below the headline "RMS voltage, peak voltage and peak-to-peak voltage".
first we connect the oscilloscope with the function generator or whatever the source of the input voltage , there will be a wave ,we try to adjust its amplitude using oscilloscope ..and this amplitude will be the peak to peak voltage..putting into consideration how volt/ div while measuring the amplitude
Yes.
The input and output amplitudes should be (approximately) the same.The amplitude of a periodic waveform is defined to be the difference between its average (or reference) and "peak" value. In the United States, the electricity from a standard wall plug is a "120 V" sine wave. This means that relative to ground, the waveform is varying from about -170V to +170V (the "120" number is the RMS value), so the amplitude is 170V. If you use this as the input to a half-wave rectifier, the output will lose either the positive-going or negative going swings; the output will go, for example, from 0 to +170V. Measured from the 0V reference, the output amplitude is 170V.
To change the amplitude of a triangle wave, you can multiply the output signal by a constant value. Increasing this value will increase the amplitude, and decreasing it will decrease the amplitude. Alternatively, you can adjust the voltage levels or inputs to the waveform generator to change the amplitude.
Amplitude ratio to dB conversion:For amplitude of waves like voltage, current and sound pressure level:GdB = 20 log10(A2 / A1)A2 is the amplitude level.A1 is the referenced amplitude level.GdB is the amplitude ratio or gain in dB.dB to amplitude ratio conversion:A2 = A1 · 10(GdB / 20)A2 is the amplitude level.A1 is the referenced amplitude level.GdB is the amplitude ratio or gain in dB.
Unless otherwise stated, the value of an a.c. current or voltage is expressed in r.m.s. (root mean square) values which, for a sinusoidal waveform, is 0.707 times their peak value. The output of a voltage (or potential) transformer is no different, its measured voltage will be its r.m.s value which is lower than its peak value.