Question

capacitance×risistance​

Answer 1

The resistance is 10 kΩ, and thecapacitance is 100 µF (microfarads). Since the time constant (τ) for an RC circuit is the product of resistance andcapacitance, we obtain a value of 1 second: If the capacitor starts in a totally discharged state (0 volts), then we can use that value of voltage for a “starting” value.