Answered: 2. When discharging a capacitor in an…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter21: Circuits And Dc Instruments

Section: Chapter Questions

Problem 33CQ: Draw two graphs of charge versus time on a capacitor. Draw one for charging an initially uncharged...

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My answer is incorrect, please write find my wrong in my explanation(process detail).

I attach the image of my process of explanation and the professor's process(blue color)

2. When discharging a capacitor in an RC (resistor-capacitor) circuit, the charge Q varies according to
the equation:
?
??
?? +
?
?
= 0
where R is resistance, C is the capacitance (both constants). Find a function for the charge stored in
the capacitor: (There’s no need to know anything about electronics or physics to do this problem. R and C
are just constants—just do the math.)
?(?) = _____________________________________________

2. When discharging a capacitor in an RC (resistor-capacitor) circuit, the charge Q varies according to
the equation:
dQ. Q
R-
dt
C
where R is resistance, C is the capacitance (both constants). Find a function for the charge stored in
the capacitor: (There's no need to know anything about electronics or physics to do this problem. R and C
are just constants-just do the math.)
da t
スラオ
RU
24)
大
he
A
オ
de
A/2L
e
,
QA) =Qe
Qe
Q(t) =
大一亿

d Q
dQ =
-dt
RC
In la| = + k,
- t
RC
Q
Inlal
- K,
k,
RC
e
: ke
%3D
e
Ta1= Re
K can be + or
Ql4t) = ke

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