A 2.36- µ F capacitor that is initially uncharged is connected in series with a 5.86-Ω resistor and an emf source with ε = 120 V and negligible internal resistance, (a) Just after the connection is made, what are (i) the rate at which electrical energy is being dissipated in the resistor; (ii) the rate at which the electrical energy stored in the capacitor is increasing; (iii) the electrical power output of the source? How do the answers to parts (i), (ii), and (iii) compare? (b) Answer the same questions as in part (a) at a long time after the connection is made, (c) Answer the same questions as in part (a) at the instant when the charge on the capacitor is one-half its final value.
A 2.36- µ F capacitor that is initially uncharged is connected in series with a 5.86-Ω resistor and an emf source with ε = 120 V and negligible internal resistance, (a) Just after the connection is made, what are (i) the rate at which electrical energy is being dissipated in the resistor; (ii) the rate at which the electrical energy stored in the capacitor is increasing; (iii) the electrical power output of the source? How do the answers to parts (i), (ii), and (iii) compare? (b) Answer the same questions as in part (a) at a long time after the connection is made, (c) Answer the same questions as in part (a) at the instant when the charge on the capacitor is one-half its final value.
A 2.36-µF capacitor that is initially uncharged is connected in series with a 5.86-Ω resistor and an emf source with ε = 120 V and negligible internal resistance, (a) Just after the connection is made, what are (i) the rate at which electrical energy is being dissipated in the resistor; (ii) the rate at which the electrical energy stored in the capacitor is increasing; (iii) the electrical power output of the source? How do the answers to parts (i), (ii), and (iii) compare? (b) Answer the same questions as in part (a) at a long time after the connection is made, (c) Answer the same questions as in part (a) at the instant when the charge on the capacitor is one-half its final value.
A 4.60-?F capacitor that is initially uncharged is connected in series with a 7.50-k Ω resistor and an emf source with ℰ = 245 V and negligible internal resistance. Just after the circuit is completed, what are (a) the voltage drop across the capacitor; (b) the voltage drop across the resistor; (c) the charge on the capacitor; (d) the current through the resistor? (e) A long time after the circuit is completed (after many time constants) what are the values of the quantities in parts (a) – (d)?
An RC circuit includes a 2-k N resistor, a battery with emf of 12.0 V and a
capacitor. At t = 0 the switch is closed, and the charging of the capacitor begins.
Knowing that the time constant of the circuit is measured to be 1 ms calculate: (a)
the capacitance of the capacitor; (b) the time it takes for the voltage across the
resistor to reach 4 V, and (c) the charge accumulated on the capacitor during this
time interval.
At time t = 0, an RC circuit consists of a 19.5-V emf device, a 68.0-Ω resistor, and a 156.0-µF capacitor that is fully charged. The switch is thrown so that the capacitor begins to discharge.
(a) What is the time constant ? of this circuit? s(b) How much charge is stored by the capacitor at
t = 0.5?, 2?, and 4??
q(t = 0.5?)
=
µC
q(t = 2?)
=
µC
q(t = 4?)
=
µC
Chapter 26 Solutions
University Physics with Modern Physics (14th Edition)
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DC Series circuits explained - The basics working principle; Author: The Engineering Mindset;https://www.youtube.com/watch?v=VV6tZ3Aqfuc;License: Standard YouTube License, CC-BY