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The time required for the current flowing in the LR series circuit to reach its maximum steady state value is equivalent to about 5 time constants or 5Ï. This time constant Ï, is measured by Ï = L/R, in seconds, were R is the value of the resistor in ohms and L is the value of the inductor in Henries.
What youÂ´ll learn in Module 4.3. 1  After studying this section, you should be able to describe: â¢ 2  The Time constant of a CR circuit. ... 3 and carry out calculations involving. â¢ 4 Time constants in a simple CR circuit.