Electric Field Flashcards
What does E stand for
Electric field
Two opposite charged objects
attract
Charge Per Length
Q/L
ฮป for ring
Q/(2๐ r)
flux
quantity of something passing through a given area
planar symmetry
system only varies with distance from a plane
๐
charge per unit area (surface charge density)
๐
charge per unit volume (volume charge density)
Enet
Sum of Es
Q or q
Charge
ฮป=?
Q/L
POI
Point of Interest
Units for ๐
coulombs per square meter (C/m^2)
Units for ๐
coulombs per cubic meter (C/m^3)
What is r?
radius
What is D?
Distance to POI
electrons to coulombs conversion
6.242 x 10^18 e/C
units of ฮป
coulombs/meter
When verticle components cancel
No jhat
Two of the same charges
Repel
What is capital Q?
The total charge
Whatโs the hypotenuse side length in a 3-4-5 right triangle?
5
derivates
used to find small piece of something
Which shape involves ฮป in its equation?
Ring and line
Which shape involves ๐ in its equation?
Plate
When will electric flux through an electric field be at its maximum?
When the angle with the normal is 0 degrees.
When will electric flux throught an electric field be zero?
When the angle with the normal is 90 degrees.
Q / L
charge per unit length
What kind of point is used to set up an intergral?
An โordinary pointโ (not a special point, like y=0)
