This preview shows pages 1–3. Sign up to view the full content.
PHYS 102 – General Physics II
Midterm Exam II, April 26, 2008
Duration: 100 minutes
NAME:.
...................................................................
Section:.
.....................
Q.1 (35)
Q.2 (35)
Q.3 (35)
Total (105)
Suggestions:
1.
Read the questions carefully.
2.
State the solutions clearly and with necessary comments (explanations).
3.
Write legibly.
4.
Check your results in terms of dimensions, units, and special limits of the
problem.
Note:
Solutions will be available just after the exam at
http://www.fen.bilkent.edu.tr/~phys102
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentQ.1
(35
points)
RC Circuit
An EMF source with potential difference
ε
and internal resistance
r
is connected to a resistor
R
and a capacitor with capacitance
C
in series connection through a switch
S
as in the figure.
Initially there is no charge in the capacitor and at
t
=0 switch
S
is closed. Write your answers in
terms of
ε
,
r
,
R
,
C
and
t
.
(a)
(5pts) Show the direction of the positive current flow and write down the equation for charge
on the capacitor for
t
>0, using Kirchhoff’s rules. (Note that your equation should include charge
q
, only (not current) as a dependent variable.
This is the end of the preview. Sign up
to
access the rest of the document.
 Fall '09
 AtillaAydınlı
 Physics

Click to edit the document details