Question #201790

A sinusoidal voltage with a period (time

Â interval) of 0.1 ms . The radian frequency w

Â is:

Â select one:

Â a. 62830 rad/s

Â b. 6283 rad/s

Â c. 62.83 rad/s

Â POLYTECH

Â d. 628.3 rad/s

Â e. 6.283 rad/s

Expert's answer

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)

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