Question
Asked Nov 10, 2019
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Exercise:
For the circuit of Figure 3 with the parameters of Table 3, what is the time constant
associated with the opening of the switch?
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Exercise: For the circuit of Figure 3 with the parameters of Table 3, what is the time constant associated with the opening of the switch?

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R2
R1
4 V
Figure 3: RL circuit
Table 3: Component values for Figure 3
L
R1
3 kΩ
R2
3 kΩ
300 mH
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R2 R1 4 V Figure 3: RL circuit Table 3: Component values for Figure 3 L R1 3 kΩ R2 3 kΩ 300 mH

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Expert Answer

Step 1

The given circuit is series RL circuit, the time constant of this circuit is given by:-

Leg
T =
R.
eq
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Leg T = R. eq

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Step 2

Calculate the equivalent resistance (Req) across the inductor by short-circuiting the terminals of...

R.
= 3 k2
eq
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R. = 3 k2 eq

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