I.) Electric
Potential - ________ needed or _____________
acquired when a
positive charge is
___________________________________________.
II) Potential Difference - ( A.K.A. - ____________________
) potential energy
difference between
___________________________________
A) Potential Difference, energy and work
As a charge moves through
an electric field it gains potential or kinetic energy
1)
***
________________________
W =
___________done against field or energy acquired working with field (Joules)
q : amount of _______________moving through field (_____________)
____________________________________
Ex) It takes
6 Joules of work to move 2 Coulombs of charge between 2 points in an electric
field. What is the potential energy difference (voltage) between these 2
points?
2) Second form of potential difference
equation
V = ____________________________ (not
on reference)
W
= ________ done against field or
_________________working with field
(Electronvolts
Ev) Electronvolt – small energy unit = _______
q :
amount of __________ moving through field (#elementary
charges)
V:
____________________ (volts)
ex. It takes 10 eV to move 2 elementary charges
from one point to another in an electric field. Find the potential difference
between these points.
Ex) +2 elementary charges
acquire 16 joules of energy when they move between 2 points in an electric
field. What is the potential difference (voltage) between these two points in
the field?
Millikan
studied ____________ on ______________ in a uniform electric field.
He suspended
the _____________ in the electric fields and was able to discover:
1) ____________ charge =
_____________________