The household line voltage of 220 V is quoted as which kind of value?
AAn raw value
BAn odd value
CAn old value
DAn rms value
Answer & Solution
Correct answer: D. An rms value
1. Mains voltage is not the peak the waveform actually reaches.
2. The quoted figure is the heating-equivalent value.
3. The household line voltage of 220 V is an rms value.
4. The peak voltage is about 311 V.
_Source: NCERT Class XII Physics Part I, Ch 7 'Alternating Current'_
Related questions
A lagging wattless current is neutralised by adding an equal:The impedance of a series LCR circuit at resonance equals:Resonance is described as a phenomenon that is:A radio is tuned to a station by matching the resonant frequency of:At the resonant frequency, the two reactances are:Inductive reactance is directly proportional to the:Maximum power is dissipated in a series LCR circuit at:A current that dissipates no power is referred to as: