In 1919, the 18th Amendment to the U.S. Constitution, which prohibited the sale and manufacture of alcohol, was ratified. It went into effect on January 16, 1920âbeginning the era known as Prohibition.
Because time constant calculations are important, and often needed, it is better to make the definition of the time constant (T) in a CR circuit: THE TIME TAKEN FOR THE VOLTAGE ACROSS A CAPACITOR TO INCREASE BY 63.2% OF THE DIFFERENCE BETWEEN ITS PRESENT AND FINAL VALUES.
exists and is an alternate of . == Frequency speaks to the number of oscillations per unit of time. Oscillations or cycles per unit of time is a concept applied to some kind of repeating or harmonic motion or wave, and it could be mechanical (sound) or electromagnetic (light).