Summary

Summary For Magnetic Field, Sources of Magnetic Field, Faraday's Law, and Inductance

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Course
Physics

Institution
Sixth Year / 12th Grade

Book
Physics for Scientist and Engineers With Modern Physics

Clean and neat one or two page summary for Electromagnetism topics of: (1) Magnetic Field, (2) Sources of Magnetic Field, (3) Faraday's Law, and (4) Inductance

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Summarized whole book? No
Which chapters are summarized? Chapter 27 to 31
Uploaded on May 20, 2024
Number of pages 7
Written in 2023/2024
Type Summary

physics
electromagentism
engineering
faradays law
dc circuits
rlc circuits
magnetic field
gauss law
electromotive force
currents
solenoids
toroids
vectors
inductance

Book Title:Physics for Scientist and Engineers With Modern Physics

Author(s):Unknown

Edition:Unknown
ISBN:9780030269646
Edition:Unknown

Class notes
Chapter 16- Waves and wave behavior
Class notes
Oscillation

Institution Secondary school
Course
Physics
School year 1

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CHARGING A CAPACITOR
·
switch on
>
-
connect to source/battery
i = instantaneous current
C
a a C instantaneous charge
g =

b b

R
i
V
R At t = 0
, g = 0

At t t,
F
=
g q =

q F
q
-
-

At t = @
, g =
&mas
no charge charging

· Time constant

T = RC · Charge as a function of time ·
current as a function of time

= time constant
g(t) =
&(1- a ict) = I
,
etIRC
R = resistance
C = capacitance

·
when t = RC
>
-
g(RP) =
& (l-ER
~ , 0 368
.

-> q(rC) = 0 .

632@T g(RD =
0 632CE
.

↳ i(RC) = I
,
e-RCR) =

2
0 .
3681
;
F
=
>
-
E
=
man
·
At time interval of 1 t , the charge is 63 2 %
.
of charge
maximum 24 +
86 5
. %, 35 +
95 % /
·
At time interval of 12 ,
the current is 36 8 % .
mmitial
of current . >
-
I
,
24 - 73 5 .
%, 35 -
4 9 .
%

DISCHARGING A CAPACITOR
·
disconnect the capacitor from source/battery

a C a C a C

b b b
i i
R V
R R
F
q
-

F
q
+ -

-E
-

no
charge charging discharging

· instantaneous charge in discharging process .
instantaneous current in discharging process

tIRC
et -T-tre
I

Di
tr
-

& ist) --E
q(t)
&
e
je
e
-

= = = -

, ,

opposite direction
from charging
·
t = 0 - g(0) = 2
; position
t = 0
- g(Δ) = 0

, CI .. MAGNETIC FIE LDDS

1 Earth's magnetic field Analysis Model : Particle in a Field (magnetic)
· geographic poles- geomagnetic poles .
1 Magnetic force
>
& charge q
·
but they are near elo--> -10 difference .
2
F on negative charge is directed opposite
*
S
to F on positive charge moving in same dir :

i energy
-

D=C
-

CME
FB
Le
& &
-h i * high A-

C
-
S ran -
- particle B 3
. Magnetic Force
F of magnetic
man N

- field B
T
Y
-S
solar wind # - - - - -

> F gx = IF) =
gl/sin O

" *
·
Unit of magnetic field =
tesla (T) >
-
1T = 1N = 10 G

↳ Comparison of
Fe and FB

I
Fe Fis
.
1
along direction of E 1 .
perpendicular to
.
2 acts on charged particle regardless of whether .
2 acts only when particle is moving
the particle is moving
.
3 does work in displacing a charged particle .
3 does no work because FLY

Z x
⑨
N N

dot Cross
> x * >Y

outward inward

↑ Motion of a Charged Particle in a Uniform Magnetic field

u
=
w
= T=M

qB

D
Non-Uniform Magnetic field

high density

=
> reverse back to low density region
- can

!
charge is
↳

trapped
low density

· We call this phenomena as magnetic bottle'

↳ Velocity Selector
·
select the velocity of the particle by adjusting this ratio !
v =

E

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Summary

Summary For Magnetic Field, Sources of Magnetic Field, Faraday's Law, and Inductance

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