electric Charge and fields
#s mes I
Quarks/epro /
force Carrier Range Strength
Mass Gravitons Infinity Weakest
weak int W and 2 weak
Photons
mus
same sign charges repel ,
opposites attract
Charge of Proton/electionIs 11 6x10 + 9
.
Principal of
ChargeConservachi Algebraic Sum of charges In a closed
System is constant
charging by contact : transferringCharge through Conductors
Charging by Induction: bringing charged conductor close to cause Shift in
electrons in receiver.
charging by Polarization :
Moving The elections in Insulators so +and-
are closer to each other
* Insulators form weak connections ,
conductors form strong lands
* Insulators Keep Charge locally
,
conductors spread charge evenly around
from patternf &
&
A force charges have a linear
9
FL = c O F =
k = 94
Superposition : The icial force on any gren charge is the Vector sum
Of the forces on all charges
Mass of earth : 3 .
97x102"9 radius of earth : 6400km
E E= force Per unit charge exerted by
#>
A an electri
XE
Will for
fieldo
away
% = charge always
Fo = %E t 90 t no musterme sign of 9
-
8
, 9
·
↑
*
%
·
S = source
= field Point =radius
T= unot reciou
=
S j D
E= k Eq . E Fima q =
Two charges with same magnitude and opposite charges create a
dipose
elective field line : Imaginary line whos tangent at and for is
- The electric field Veter
disole field les connect
, non-dipose lines never connect
P dipole T 9 d.
&
= Moment = -to +
lines
*
field
&
*
speed of electrons : a
=
F GE force dipole ?
-
=
what is the net on the
fnet = f+ + F- ⑳
what is the net torque ?
F
Esmo E-Esmo
GE
Ed Gedsno
=
= = F+ + =
Pesmo
-
E
V = -P
.
=
what is the anguar acceleration ?
= It X=
Ente
, A particle is moves right a 40x0Mis find .
The weakest magnitude
of an electric field that can bong the Partic to rest In 3.
2m
.
W=
Y
11111111
Ke-k .
- 9Ed =
9=
O-Emrh
22nd ·
&
,
dEx = dEcose
Ex
=d
A ①
·
da= Xds-ineur charge
densy
-
# his large (infinite Sneta Ring
Us
amai an
W E Ponts
A = TrL for
,
wire
↓ Is -
E Pomis teward
,
line Segment
Gauss Law : Relationship between charge Inside a surface and
*
charse that developsen surface
90
E .
A = -
8 85x1512
If theres
.
o two opposing signs with same
Magnaude in a surface there is no
flux
,
%
.
· flux directly proportional to the
is
magnitude of Charge
· darbing the surface area will
weaken the electric field by
T a factor of u
E Acoso for uniform
field more area means
# UK= .
Mux
Secoso
·cre
Fiux = da X for non chifarm
#s mes I
Quarks/epro /
force Carrier Range Strength
Mass Gravitons Infinity Weakest
weak int W and 2 weak
Photons
mus
same sign charges repel ,
opposites attract
Charge of Proton/electionIs 11 6x10 + 9
.
Principal of
ChargeConservachi Algebraic Sum of charges In a closed
System is constant
charging by contact : transferringCharge through Conductors
Charging by Induction: bringing charged conductor close to cause Shift in
electrons in receiver.
charging by Polarization :
Moving The elections in Insulators so +and-
are closer to each other
* Insulators form weak connections ,
conductors form strong lands
* Insulators Keep Charge locally
,
conductors spread charge evenly around
from patternf &
&
A force charges have a linear
9
FL = c O F =
k = 94
Superposition : The icial force on any gren charge is the Vector sum
Of the forces on all charges
Mass of earth : 3 .
97x102"9 radius of earth : 6400km
E E= force Per unit charge exerted by
#>
A an electri
XE
Will for
fieldo
away
% = charge always
Fo = %E t 90 t no musterme sign of 9
-
8
, 9
·
↑
*
%
·
S = source
= field Point =radius
T= unot reciou
=
S j D
E= k Eq . E Fima q =
Two charges with same magnitude and opposite charges create a
dipose
elective field line : Imaginary line whos tangent at and for is
- The electric field Veter
disole field les connect
, non-dipose lines never connect
P dipole T 9 d.
&
= Moment = -to +
lines
*
field
&
*
speed of electrons : a
=
F GE force dipole ?
-
=
what is the net on the
fnet = f+ + F- ⑳
what is the net torque ?
F
Esmo E-Esmo
GE
Ed Gedsno
=
= = F+ + =
Pesmo
-
E
V = -P
.
=
what is the anguar acceleration ?
= It X=
Ente
, A particle is moves right a 40x0Mis find .
The weakest magnitude
of an electric field that can bong the Partic to rest In 3.
2m
.
W=
Y
11111111
Ke-k .
- 9Ed =
9=
O-Emrh
22nd ·
&
,
dEx = dEcose
Ex
=d
A ①
·
da= Xds-ineur charge
densy
-
# his large (infinite Sneta Ring
Us
amai an
W E Ponts
A = TrL for
,
wire
↓ Is -
E Pomis teward
,
line Segment
Gauss Law : Relationship between charge Inside a surface and
*
charse that developsen surface
90
E .
A = -
8 85x1512
If theres
.
o two opposing signs with same
Magnaude in a surface there is no
flux
,
%
.
· flux directly proportional to the
is
magnitude of Charge
· darbing the surface area will
weaken the electric field by
T a factor of u
E Acoso for uniform
field more area means
# UK= .
Mux
Secoso
·cre
Fiux = da X for non chifarm
