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.
What is an inductor's time constant?. Are we talking about a real inductor with DC resistance R and self inductance L. In that case the question is meaningful. If the R in the question is an external resistance, and the inductor is assumed to be ideal, then the question should be What is the time constant of a series LR circuit?. I suspect the question is about the LR circuit, not the inductor itself.