An RC circuit consists of a 15 pF capacitor, a resistor with an unknown resistance, and a 12.0 V barrery, Five seconds after the switch is closed, the voltage across the capacitor is found to be 8.0 V. Find the (a) time constant, (b) charge of the capacitor 5.0 s after the switch is closed, and C) resistance of the unknown resistor.

An RC circuit consists of a 15 pF capacitor, a resistor with an unknown resistance, and a 12.0 V barrery, Five seconds after the switch is closed, the voltage across the capacitor is found to be 8.0 V. Find the (a) time constant, (b) charge of the capacitor 5.0 s after the switch is closed, and C) resistance of the unknown resistor.

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Direct-current Circuits

Section27.2: Resistors In Series And Parallel

Problem 27.2QQ: With the switch in the circuit of Figure 27.4a closed, there is no current in R2 because the current...

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Charging the Capacitor

Practice Exercise 4.6
An RC circuit consists of a 15 pF capacitor, a resistor with an unknown resistance, and a 12.0 V
harrery, Five seconds after the switch is closed, the voltage across the capacitor is found to be 8.0 V.
Find the (a) time constant, (b) charge of the capacitor 5.0 s after the switch is closed, and
(c) resistance of the unknown resistor.

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