Answered: When the switch is thrown to position…

When the switch is thrown to position b, the capacitor discharges. a R Figure 27.15 A capacitor in series with a resistor, switch, and battery. 3.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 14CQ: What is die basic operation of an ohmmeter as it measures a resistor?

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Question

Consider a capacitor of capacitance C that is being discharged through a resistor of resistance R as shown.
(A) After how many time constants is the charge on the capacitor one-fourth its initial value? (B) The energy stored in the capacitor decreases with time as the capacitor discharges. After how many time constants is this stored energy one-fourth its initial value?

When the switch is thrown
to position b, the capacitor
discharges.
a
R
Figure 27.15 A capacitor in
series with a resistor, switch, and
battery.
3.

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