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Consider the circuit shown in the figure below where L = 5.10 mH and R₂ = 410 N.
L
voo
24.0 V
+
a
S
ob
R₁
R₂
(a) When the switch is in position a, for what value of R₁ will the circuit have a time constant of 14.9 µs?
ΚΩ
(b) What is the current in the inductor at the instant the switch is thrown to position b?
mA

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