Question
Download Solution PDFIn a series RL circuit the value of inductance is 1 Henry and resistance is 10 ohms. What is the time constant of the circuit?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
We can use Kirchhoff’s Voltage Law, (KVL) to define the individual voltage drops that exist around the circuit and then hopefully use it to give us an expression for the flow of current.
\(I_t = \frac{V}{R}\left( {1 - {e^{\frac{{Rt}}{L}}}} \right)\)
The Time Constant, ( τ ) of the LR series circuit is given as L/R and in which V/R represents the final steady-state current value after five-time constant values.
Calculation:
L = 1 H, R = 10Ω
Time constant = 1/10 = 0.1 sec
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