SSC JE Electrical Engineering 2012 Paper

Question : 123 of 200

Marks: +1, -0

A periodic train of rectangular pulses x(t) with a time period of 25 seconds, has a pulse width of 9 second as shown in Figure. The RMS value of the waveform is

10 V
$√6$ V
3.6 V
2.16 V

Validate

Solution:

The RMS value of the waveform is

X_\RMS=X_\max(T_\on/T)^{1/2}

=6(9/25)^{1/2}=3.6\volt

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