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13-04-2022
Physics

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g A series circuit contains a 1.0-k Ω resistor, a 5.0-mH inductor, and an ideal 25-V power supply. What is the time constant for the circuit?

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13-04-2022

Hi there!

Recall the equation for an LR circuit time-constant:
[tex]\tau = \frac{L}{R}[/tex]

L = Inductance (H)

R = Resistance (Ω)

Plug in the given values.

[tex]\tau = \frac{0.005}{1000} = 0.000005 s = \boxed{\text{5 } \mu s}[/tex]

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