Answer to Question #201790 in Electrical Engineering for ya73

Question

A sinusoidal voltage with a period (time

 interval) of 0.1 ms . The radian frequency w

 is:

 select one:

 a. 62830 rad/s

 b. 6283 rad/s

 c. 62.83 rad/s

 POLYTECH

 d. 628.3 rad/s

 e. 6.283 rad/s

Answer 1

From the problem statement we know

$T=0.1 \cdot 10^{-3}=10^{-4}s$

Then the frequency of radian oscillations is

$w=\frac{2 \cdot \pi}{T}=\frac{2 \cdot 3.1415}{10^{-4}}=62830rad/s$

Answer: a)