The R.M.S voltage is given by which of the following relation?(a) Vrms = \(\frac{V_m}{2}\)(b) Vrms = \(\frac{V_m}{\sqrt{2}}\)(c) Vrms = \(\frac{V_m}{8}\)(d) Vrms = \(\frac{V_m}{\sqrt{8}}\)The question was asked in a national level competition.Question is from CRO Measurements in section Oscilloscopes of Electrical Measurements

The R.M.S voltage is given by which of the following relation?(a) Vrms

1.	The R.M.S voltage is given by which of the following relation?(a) Vrms = \(\frac{V_m}{2}\)(b) Vrms = \(\frac{V_m}{\sqrt{2}}\)(c) Vrms = \(\frac{V_m}{8}\)(d) Vrms = \(\frac{V_m}{\sqrt{8}}\)The question was asked in a national level competition.Question is from CRO Measurements in section Oscilloscopes of Electrical Measurements
Answer» Right choice is (b) VRMS = \(\FRAC{V_m}{\sqrt{2}}\) The explanation: The r.m.s value of VOLTAGE is GIVEN by the RELATION, Vrms = \(\frac{V_m}{\sqrt{2}}\) where, Vrms is the r.m.s value of voltage Vm is the amplitude of the voltage.

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