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.
Amperage, or current, is a measure of the amount of electrons moving in a circuit. Voltage is a measure of how much force those electrons are under. In a circuit, say a light and switch in your home when the light is on there there is a voltage across the filament of the bulb that is pushing amperage through the circuit.