electrostatics electric fields
I
O two objects touch -p new charge
what 3 touch
if ?
happens
①new =
NB ! takes into account F =
↓ cnewtons)
signs
r =
m (meters)
E = ."
N (Newtons per
Coulomb)
② what charge was transferred Q Or q =
C (coulomb)
Q transferred =
Goriginal
-
Onew c[ =
x10
- 2 >
-
[
mc = 3 >
-
x10
-
uc x10 6 [
I
-
= -
>
N C =
x10
-
9 - C
Vis ! include in Formula , but in
ignore
answers
signs
PC =
x10
-
1
- C
:
eg
& transferred =
3-C-1) OR
=
4[
ex
-
planation
③ Number of electrons transferred movement
charge to =-
=
c
+2C
-
4)
Ne- -
4/ ↳) 6x10-19C
charge of e-1 ,
number of e- F will be left
↳ Atways GOES #
NB ! electrons transfer from to most pos
most
neg .
-
-
2 => 6= IC
ie) +0
-
S
=7
e -e e-
-
NB !
greater distance
↳ smaller/weaker Force
④
.
Coloumbs law
9 x10 - 9N ? 2
-
-
. m c
F = S UPER NB !
F Force ! FL Q , Q2 - =
Felectrostatic
VECTOR 9
-
=
=
D
Newton's 3rd law
↳ Q . B 02 experience same f Fd
+
r2 itis atrestoneat, , -
Field
NB !
always say attract or
repel in answer
F field =
Fg ,
bes its
still !
But , include NO
signs in calculations
I
O two objects touch -p new charge
what 3 touch
if ?
happens
①new =
NB ! takes into account F =
↓ cnewtons)
signs
r =
m (meters)
E = ."
N (Newtons per
Coulomb)
② what charge was transferred Q Or q =
C (coulomb)
Q transferred =
Goriginal
-
Onew c[ =
x10
- 2 >
-
[
mc = 3 >
-
x10
-
uc x10 6 [
I
-
= -
>
N C =
x10
-
9 - C
Vis ! include in Formula , but in
ignore
answers
signs
PC =
x10
-
1
- C
:
eg
& transferred =
3-C-1) OR
=
4[
ex
-
planation
③ Number of electrons transferred movement
charge to =-
=
c
+2C
-
4)
Ne- -
4/ ↳) 6x10-19C
charge of e-1 ,
number of e- F will be left
↳ Atways GOES #
NB ! electrons transfer from to most pos
most
neg .
-
-
2 => 6= IC
ie) +0
-
S
=7
e -e e-
-
NB !
greater distance
↳ smaller/weaker Force
④
.
Coloumbs law
9 x10 - 9N ? 2
-
-
. m c
F = S UPER NB !
F Force ! FL Q , Q2 - =
Felectrostatic
VECTOR 9
-
=
=
D
Newton's 3rd law
↳ Q . B 02 experience same f Fd
+
r2 itis atrestoneat, , -
Field
NB !
always say attract or
repel in answer
F field =
Fg ,
bes its
still !
But , include NO
signs in calculations
