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A pulse waveform with a frequency of 20 kHz is applied to the input of a counter. During 40 ms, how many pulses are counted?
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A pulse waveform with a frequency of 20 kHz is applied to the input of a counter. During 40 ms, how many pulses are counted?

User Geuis
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1 Answer

4 votes

Answer:

800 pulses

Step-by-step explanation:

We have to convert everything to compatible units.

20kHz = 20e3 Hz

40 ms = 40e-3 s

Hz = 1/s => 1/20e3 s


(40*10^-3 s)/((1)/(20*10^3) ) = 800 pulses

User Biji
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3.9k points
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