Consider the circuit shown in the figure below, where L = 4.60 mH and R, = 420 0. The switch S can be positioned at either a or b. L ll 24.0 V R (a) When the switch is at position a, the time constant is 14.8 µs. What is R, (in ko)? (b) What is the current in the inductor at the instant the switch is thrown to position b?

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter21: Resistive-capacitive Series Circuits
Section: Chapter Questions
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Consider the circuit shown in the figure below, where L = 4.60 mH and R,
= 420 0. The switch S can be positioned at either a or b.
L
ll
24.0 V
R
(a) When the switch is at position a, the time constant is 14.8 us. What is R, (in kn)?
|k2
(b) What is the current in the inductor at the instant the switch is thrown to position b?
Transcribed Image Text:Consider the circuit shown in the figure below, where L = 4.60 mH and R, = 420 0. The switch S can be positioned at either a or b. L ll 24.0 V R (a) When the switch is at position a, the time constant is 14.8 us. What is R, (in kn)? |k2 (b) What is the current in the inductor at the instant the switch is thrown to position b?
A 140-mH inductor and a 5.10-n resistor are connected with a switch to a 6.00-V battery as shown in the figure below.
Wele
R L
(a) After the switch is first thrown to a (connecting the battery), what time interval elapses before the current reaches 220 mA?
ms
(b) What is the current in the inductor 10.0 s after the switch is closed?
| A
(C) Now the switch is quickly thrown from a to b. What time interval elapses before the current in the inductor falls to 160 mA?
ms
Transcribed Image Text:A 140-mH inductor and a 5.10-n resistor are connected with a switch to a 6.00-V battery as shown in the figure below. Wele R L (a) After the switch is first thrown to a (connecting the battery), what time interval elapses before the current reaches 220 mA? ms (b) What is the current in the inductor 10.0 s after the switch is closed? | A (C) Now the switch is quickly thrown from a to b. What time interval elapses before the current in the inductor falls to 160 mA? ms
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