Potential and Potential Energy Flashcards
U
Electric potential energy
Gravity is what kind of force?
Conservative force
∆V
∆U/q
V for point charge
kq/r
E.P.E Equation for point charges
kq1q2(1/r2 - 1/r1)
Potential Energy is defined for a
Conservative force
Potential energy
stored energy
Kinetic energy
energy due to motion
What is 12mM in M?
0.012
When D encloses all 3 charges in a diagram what do you do?
Add all 3 charges
E inside sphere
E= pD/3εo
E outside sphere
E= kQ/D^2
What is E(area)?
E(Area) is the Geometry of the Gaussian Surface
What is the charge enclosed?
Charge enclosed is what is inside of the Gausssian Surface
Lambda
to represent the charge per unit length of the infinite conducting rod
K constant
9x10^9
What if D only encloses 2/3 charges given in a sphere?
you only use the 2 charges it encloses, and ignore the 3rd
What is the flux proportional to?
the net electric charge enclosed
How do you show the square root using an exponent
x^(1/2)
what is cm to m
m*10^-2
Customary Gauge Choice for point charges
V=0 @ r-> infinity
Delta V
Change in voltage
E inside wire
E= pD/2εo
E outside wire
2kλ/D
What is an equivelence resistor?
a resistor with an energy value that equals the sum of all resitor values included in the circut
equation for electric potential difference
V=Ed
E inside a sheet/slab
E= pD/εo
E outside a sheet/slab
E=σ/εo
voltage units
joules per coulomb (volt)
ε0 value
8.85 x 10^-12
What is the dot product of a path integral?
a piece of the path along the field
Gauge Choice
choosing how to measure something
Point charge formula for Voltage
V(r) = kq/r
electric potential formula
delta V = delta U/q
What does potential energy need to occur?
conservative forces
E(Area)
has infinite possibilities relating to geometry and an enclosed charge
What kind of force is electric force?
Conservative force
What is the integral of dy?
y
