Electric and
Magnetic
Fields
, ① Definitions
An electric field changed particle
is area
whereby
·
an a experiences a
force
·
.
positive
·
Electric field strength is the force per unit
charge experienced by said
particle.
-
F = Force
:.
E : Q : charge
i = force
charge
=
Q, =
Coulombs'law: FBF Qu =
charge 2
r = distach
② Electric Potential
·
Electric potential (v) at a
point is the potential energy per unit change
that in the field.
of a
positive point change at
point
~ the magnitude of electric potential is
greatest at the surface of the change
and as distance from the charge increases the
, potential decreases ,
so
electric potential at
infinity is 200 ·
-
V/v
Y
~ /m
: V =
Electric difference (AU) is the to between
potantial
energy required wit charge
·
more a
two .
points
Magnetic
Fields
, ① Definitions
An electric field changed particle
is area
whereby
·
an a experiences a
force
·
.
positive
·
Electric field strength is the force per unit
charge experienced by said
particle.
-
F = Force
:.
E : Q : charge
i = force
charge
=
Q, =
Coulombs'law: FBF Qu =
charge 2
r = distach
② Electric Potential
·
Electric potential (v) at a
point is the potential energy per unit change
that in the field.
of a
positive point change at
point
~ the magnitude of electric potential is
greatest at the surface of the change
and as distance from the charge increases the
, potential decreases ,
so
electric potential at
infinity is 200 ·
-
V/v
Y
~ /m
: V =
Electric difference (AU) is the to between
potantial
energy required wit charge
·
more a
two .
points
