The input a.c. voltage of frequency $60 \mathrm{~Hz}$ is applied to half-wave rectifier and also to…

The input a.c. voltage of frequency $60 \mathrm{~Hz}$ is applied to half-wave rectifier and also to full-wave rectifier. The output frequency in case of half-wave rectifier and that in case of full wave rectifier is respectively.
  1. $120 \mathrm{~Hz}, 60 \mathrm{~Hz}$
  2. $60 \mathrm{~Hz}, 120 \mathrm{~Hz}$
  3. $60 \mathrm{~Hz}, 60 \mathrm{~Hz}$
  4. $120 \mathrm{~Hz}, 120 \mathrm{~Hz}$

Solution

In a half-wave rectifier, one pulse is obtained for each wave and hence 60 pulses will be obtained per second. In a full wave rectifier, two pulses are obtained for each wave and 120 pulses are obtained per second.

Asked in: MHT CET 2021 (24 Sep Shift 2)

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