Question

R.m.s value depends on which of the following?
a) Heating effect
b) Charge transfer
c) Current
d) Voltage
For a symmetrical waveform the average value of one full cycle is -
a) 1
b) 1.11
c) 2.22
d) Zero​

Answer 1

Answer:

d) voltage and in second questions a) 1

Answer 2

'R.m.s value' depends on Heating effect

Option (a)

Explanation:

RMS (Root mean square) value is defined based on the heating effect of wave-forms. The value at which heat dissipated in the AC circuit is the same as the heat dissipated in the DC circuit is called RMS value, provide both AC and DC circuits have equal value of resistance and operated for the same time.

For a 'symmetrical waveform' the 'average value' of one full cycle is 'Zero'

Option (d)

Explanation:

The 'average' or 'mean' value of a 'symmetrical sine wave', is the average value determined over only one half of a 'cycle'. Since, as we noted, the 'average' value over a full cycle is zero irrespective of the peak amplitude.