starting point: object model
Name
!
?
name
inserted,
photos
image
Photo
Album
!
subs
!
Image
?
le
Root
UserDened
Selected
!
File
additional constraints
all albums reachable from root (implies acyclic)
Album in Root.*subs
implicit photos are inserted photo
6.01
idterm 2
Spring 2011
1 Find the Voltage and Current (12 points).
Determine V and I in the following circuit.
I
3
2
15V
V=
I=
10
V
18V
-1
Use superposition.
If the current source is set to zero (replaced with an open circuit), then V would be 2 / 2
3
2
6.01 Midterm Exam 2 Spring 09
1 Circuits (20 points)
Consider the following circuit where the resistance R is in the range 0 R .
I1
3
+
6V
1
V1
R
Part a. Determine I1 if R = 0 .
2A
I1 =
I1 =
6V
= 2A
3
Part b. Determine V1 if R = 1 .
3V
V1 =
V1
3
6
+
7
V
6.033 Spring 2007, Quiz 1
I
Page 2 of 12
Reading Questions
1. [6 points]: Which of the following statements are true of the X Windows System (as described in
the X Windows paper, reading # 5)?
(Circle True or False for each choice.)
A. True / False When a