Question

what is the frequency of a clock waveform whose period is 20 microseconds? 2 mhz 50 khz 25 khz 5 khz

Explanation:

Step1: Recall the formula for frequency

The formula for frequency \( f \) and period \( T \) is \( f=\frac{1}{T} \).

Step2: Convert the period to seconds

Given \( T = 20\ \mu s=20\times10^{- 6}\ s \).

Step3: Calculate the frequency

Substitute \( T \) into the formula: \( f=\frac{1}{20\times10^{-6}\ s}=50\times10^{3}\ Hz = 50\ kHz \).

Answer:

B. 50 kHz