In the circuit of the figure below, the switch S has been open for a long time. It is then suddenly closed. Take & = 10.0 V, R₁ = 47.0 k, R₂ = 135 kn, and C = 13.5 μF. R₁ w C S ww R₂ (a) Determine the time constant before the switch is closed. × Your response differs from the correct answer by more than 10%. Double check your calculations. s (b) Determine the time constant after the switch is closed. Your response differs from the correct answer by more than 10%. Double check your calculations. s (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time. (Assume I is in A and t is in s. Do not enter units in your expression. Use the following as necessary: t.) I =

In the circuit of the figure below, the switch S has been open for a long time. It is then suddenly closed. Take & = 10.0 V, R₁ = 47.0 k, R₂ = 135 kn, and C = 13.5 μF. R₁ w C S ww R₂ (a) Determine the time constant before the switch is closed. × Your response differs from the correct answer by more than 10%. Double check your calculations. s (b) Determine the time constant after the switch is closed. Your response differs from the correct answer by more than 10%. Double check your calculations. s (c) Let the switch be closed at t = 0. Determine the current in the switch as a function of time. (Assume I is in A and t is in s. Do not enter units in your expression. Use the following as necessary: t.) I =

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Direct-current Circuits

Section: Chapter Questions

Problem 28.14P: (a) When the switch S in the circuit of Figure P28.14 is closed, will the equivalent resistance...

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Consider a circuit that consists of a real battery with an emf and an internal resistance of r connected to a variable resistor R. (a) In order for the terminal voltage of the battery to be equal to the emf of the battery, what should the resistance of the variable resistor be adjusted to? (b) In older to get the maximum current from the battery, what should the resistance variable resistor be adjusted to? (c) In order for the maximum power output of the battery to be reached, what should the resistance of the variable resistor be set to?
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