It can be observed from the chart that one time constant is the length of time required for current to build to
63.2 percent of its maximum value, or from its maximum value to zero.
Q. How many time constants will be required for the current in the figure below to reach its maximum value
after the switch is closed?
What is the L/R time constant of the circuit shown below?
State the relationship between the voltage and the current in a purely inductive circuit.
Q. How many time constants are required for maximum current to flow in an L/R circuit after it's energized?