Question

Find the peak to peak voltage, peak voltage, RMS voltage if the sinusoidal wave in CRO has peak to peak difference of 4.4 divisions and the scope scale is set to 0.1 mv/div

Answer 1

Find the peak to peak voltage, peak voltage, RMS voltage if the sinusoidal wave in CRO has peak to peak difference of 4.4 divisions and the scope scale is set to 0.1 mv/div

Given, Scope Scale = 0.1 mv/div.

Peak to peak difference = 4.4 divisions

Therefore, the peak division 4.4/2 = 2.2 division

Hence peak voltage = 2.2 * 0.1 = 0.22 mv

RMS Voltage = $RMS Voltage = V_{rms} = \frac{V_{peak}}{sqrt(2)} = \frac{0.22}{1.414} = 0.155 mV$