Consider the circuit shown in the figure below, wnere L = 5.45 mH and R2 switch S can be positioned at either a or b. L ll 24.0 V R R (a) When the switch is at position a, the time constant is 14.8 ps. What is R, (in kn)? (b) What is the current in the inductor at the instant the switch is thrown to position b? mA
Consider the circuit shown in the figure below, wnere L = 5.45 mH and R2 switch S can be positioned at either a or b. L ll 24.0 V R R (a) When the switch is at position a, the time constant is 14.8 ps. What is R, (in kn)? (b) What is the current in the inductor at the instant the switch is thrown to position b? mA
College Physics
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Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
Consider the circuit shown in the figure below, where
L = 5.45 mH
and
R2 = 500 Ω.
The switch S can be positioned at either a or b.A circuit contains a battery, a switch, an inductor, and two resistors. The battery is labeled 24.0 V and is on the left side of the circuit. The positive terminal is above the negative terminal. The circuit starts at the positive terminal and extends directly up, then directly to the right where it reaches the switch at a point labeled a. The switch is labeled S and allows the circuit to alternate between two paths. The first path starts at the positive terminal of the battery, goes up and then to the right through the switch from the point labeled a to a point without a label, goes to the right through the inductor labeled L at the top of the circuit, goes down through the resistors labeled R1 and R2 placed in parallel with each other on the right side of the circuit, goes to the left through a wire running directly from the right side of the circuit to the left, and ends at the negative terminal of the battery. The second path starts at the switch, goes through the inductor, through the resistors in parallel, and to the other end of the switch at a point labeled b.
(a)
When the switch is at position a, the time constant is 14.8 µs. What is R1 (in kΩ)?
kΩ
(b)
What is the current in the inductor at the instant the switch is thrown to position b?
mA
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