At time t = 0, an RC circuit consists of a 20.0-V emf device, a 50.0-N resistor, and a 146.0-µF capacitor that is fully charged. The switch is thrown so that the capacitor begins to discharge. (a) What is the time constant r of this circuit?

At time t = 0, an RC circuit consists of a 20.0-V emf device, a 50.0-N resistor, and a 146.0-µF capacitor that is fully charged. The switch is thrown so that the capacitor begins to discharge. (a) What is the time constant r of this circuit?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 60PQ: Figure P29.60 shows a simple RC circuit with a 2.50-F capacitor, a 3.50-M resistor, a 9.00-V emf,...

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Question

At time t = 0, an RC circuit consists of a 20.0-V emf device, a 50.0-0 resistor, and a 146.0-µF capacitor that is fully charged. The switch is thrown so that the capacitor begins to discharge.
(a) What is the time constant t of this circuit?
(b) How much charge is stored by the capacitor at t = 0.5t, 2t, and 4t?
q(t = 0.57)
μC
%D
q(t = 2t)
µC
q(t = 4t)

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