Exam #1 Flashcards
Vector Calculus, Electrostatic Fields
1
Q
What does Static means?
A
time invariant
2
Q
What is a Vacuum?
A
Free Space
3
Q
The Electrostatic field is produced by
A
static charge distribution
4
Q
Coulumbs Law states that the force between two charge is
A
- among the line joining them
- Directly proportional to the product q1q2
- Inversely proportional to the square of the distance R between them
5
Q
The Force between two charges is measured in
A
Coulumbs [C]
6
Q
F21 is the force on…
A
Q2 due to q1
7
Q
Couloumbs Law is -mathematically -
A
F=k(q1q2)/r^2
8
Q
Suporposition apply to
A
Electrostatic force, electric field and electric potential for a charge
9
Q
electric field intensity is denominated by
A
E and it is a vector
10
Q
E goes in the direction of
A
Electrostatic force F
11
Q
Electrostatic field mathematical
A
F/Q=E (vector)
12
Q
E at a point r due to a charge at r’
A
E=kQ(r-r’)/|(r-r’)|^3
13
Q
line charge density units
A
C/m
14
Q
surface charge density units
A
C/m^2
15
Q
volume charge density units
A
C/m^3
