The frequency of the voltage fluctuation in the electrical circuit is 50 Hz. Determine the period of oscillation.

f = 50 Hz.
T -?
The frequency of oscillations f is the number of oscillations N per unit of time t.
f = N / t.
The oscillation period T is the time of one complete oscillation.
T = t / N.
Therefore, T = 1 / f.
T = 1/50 Hz = 0.02 s.
Answer: 1) T = 0.02 s oscillation period in the electric circuit

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