Pendahuluan Elektrostatika, Jenis Muatan dan Hukum Coulomb (Fisika SMA/MA Sagufindo kls XII smt 1)

yo yo assalamualaikum warahmatullah

wabarakatuh Good morning Hello how are you, little

brother, studying, of course, everyone is still

in good health, right? Well, this time

we meet again to continue the

material about electrostatics, well, according

to the origin of the word here, yes, there is

electro, yes, and there is statics, yes,

So if electro means

everything related to

electricity, of course, then statics

is still, well, That means if

electrostatics

is the science of physics and the decline of yellow

physics that studies electricity

that is in a state of rest, yes, or

charges, yes, the focus will be there,

yes, charges in a state of rest, well,

to learn more or

before going there, what exactly are

we going to learn in this discussion, of

course, the emergence of

electrical processes, electrical processes

actually start from the presence of

charges, yes, the presence of charges that interact with each other,

yes, we can, we

can start this discussion with Eh

Saturday, yes, the first is the types of

charges, yes, yes, types of charges

Hi, well, kefir, types of charges, yes,

types of eyes, Well, we know that

there are two types of charges, first

in a positive charge, so the

positive charge that we call it what is a

Proton, yes, the positive charge of the Proton,

then the negative charge does not agree

as an electron, yes, the electron is a proton and an

electron, well, actually this is what will

contribute, yes,

contribute to

electrical events, yes, these 22 types of charges, so

starting from

these two types of charges, in the end,

it's like what are the names of

events in nature,

indeed the Almighty's treasure has

created everything in

pairs Widya, there is a positive that we

call a Proton, there is a negative that we

call an electron, well, between the

proton and the electron, this is what

will interact,

interact so that the second one

we can write there is an

interaction, yes, interaction, yes, charge,

okay, well, interaction, well, how is

the interaction between these two charges,

whether different or the same,

using this, we need to understand the

first one, try, if I have what is a

positive charge, yes, only have a

positive charge, here

Deni has a positive charge, then there

I have a negative charge, namely a

negative charge, he means this is a Proton,

this is an electron, well, if Proton with

electronics, it's natural to want to eat, yes, he attracts,

yes, he attracts give until

if this later we will describe it means

he will experience a pulling force in

that direction well this if later the discussion

is related to force then later for the

next like that but here

just for introduction we have

this F for example A is Eva Eva well then

I named that one B well that

so this is called Eva bi-7 he is

pulled

Hi so it will be positive and negative

happy yes he is attracted like that well

while B is also like that yes B

he is attracted there and there his name is so

f okay FB yes FB Anggito yes FB eh that

between FB and FB this is the same size

yes the pulse there but the direction is different

with the interaction for two charges

that are not the same well what if

the charge is the same for example I have a

positive charge like that then this age is

also positive Oh I see yes positive with

positive like it or not Gana he

runs if he doesn't want to run away

running closer yes running

away ngaji

Hi this we give the name with a then

there we give the name b like that so the

name is B this dp is also moving away

Well that's the message is evade that

FB there The name is FB So this FB is

read as evaded, these

are the forces experienced by a

due to the influence of charge B and vice versa.

This is the force experienced by B due to

the influence of a for well of course between a

and b there is a distance

Usually we give it the name er like that Well

later we will discuss it in detail well

next What if the charges are

both negative yes the same yes this is negative

go I am also confused this besides there is a

negative charge too like this This

Ajun's name is Abin just unlock it yes the number

above it is good to download YouTube Well what is

this also doesn't want to Oh if he doesn't

want to then he runs there Oh his name doesn't

want to like that his name finally what do we name it

with FB yeah that One is also FB a

okay yes bea here F eh like that Well this is

the interaction that occurs naturally that

occurs naturally in nature of

course eh what is the name of the internet up

due to the interaction between

these two charges which will later

become the beginning of the discussion on

electrostatics this map the second one

is finished so this is the type of charge already like

that yes what type of interaction between charges

already well next is this we

discuss What's up with this yes after we are

clear there is an interaction like this How many

the magnitude of that net we enter in the

next part the third is the

force, yes, the Coulomb force is written

like this, oh Kowloon, well,

maybe it seems like the Kulon style

reads it as Kulomang, reads it as

Coulomb, well, what is the Coulomb force actually?

Amin force, yes, this Coulomb force actually

starts from this explanation. Well,

this is what is the name of what has been

implemented by Charles

Agustin Kulom, yes, Charles Agustin Coulomb

when conducting experiments. So,

the magnitude of the attractive force or repulsive force is

because there are two forces, namely

the details of the attractive force and the complete repulsive force, the attractive force

and repulsive force that occur

between two charges are

proportional to the

respective charges. So, if during

this experiment, this column

concludes that the force, yes,

these forces are symbolized by F, yes,

this attractive force is attractive, yes, the

attractive force or repulsive force between

two charges is called FC, yes, the

Coulomb force is proportional to the magnitude of the

respective charges Q1 and Q2. Well, if

there are two charges, yes, if there are

two fruit load well next the column

also concluded that the forces

that occur during the interaction

are inversely proportional yes so

inversely proportional to the square of

the distance so the square of the distance is that well that is

just like this that is

conveyed by the column so Well the gear

finally when

eh what is it called yes the experiment

was carried out further experiments

further it turns out that these signs are still

comparable yes still comparable

comparable it is not the same as the force is

not the same as Well finally when

finished doing the experiment it was calculated

doing it many times like that yes

when tested it turns out the magnitude turns

out the magnitude of the Coulomb force the

Coulomb force is the same as this is still there

first this is still there Q1 then multiplied

by Q2 well inversely proportional to the

square of the distance we have

written above but there is a

constant of comparison yes constant and

we six Rakan as ka nahi

first later we will call it Khazanah

Sis this is what we call the

cool constant Omnya so Sis this is a

constant Okay column constant now

this Kulon constant is how much is nine times

10 to the power of 9 Well so what is the unit

oh so many n i n i this distance is

m which n m to the power of 2 then kulom per

Kulon square wave card mint two like

that then Q1 and Q2 Q1 and Q2

this is the charge ok

Hi each charge is not like that

okay each charge watch

each unit is Coulomb

as big as and er yes er that is the distance

Well that is the distance of the two charges the distance of the two charges a the

unit what is the unit is

the meter like that This is what is called

eh or the formula of the coulomb force is

here from like that of course once

again we need to remember that

there are two coulomb forces there is an attractive force and there is a

repulsive force which Tari is like

Hi the tol is like this like that key

eh next Okay next is

if for example if for example eh

coulomb force this coulomb force yes

this coulomb force was for constant

9 of 10 ^ 9 it is actually the

coulomb force constant for a vacuum

that is a vacuum well what if

for example it is the coulomb force that occurs

in a material or media that is the

coulomb force that occurs in a media

of course the media or material It is believed

Write down number 4 first, geh,

number 4 is

the okay Coulomb force on the media, on the

media Neng, if it's like this, it means

that if you are in a vacuum,

Well, for example, in the media, the

media certainly has a

relative permittivity. Yes, this is what

differentiates one medium and the

second medium, that is

relative permittivity, there is a term, let me introduce it

first, there is a request from the party,

permittivity David as permittivity which is

symbolized by

cce epsilon, yes, epsilon

relative permittivity first, yes, Latif V, this g is

symbolized by epsilon rh6 epsilon

relative permittivity or epsilon er

shirt, then what exactly is epsilon

er, relative permittivity time

epsilon er What is Ria, it is actually the

ratio between the permittivity

of the materials that are the

media for these two charges, right? This is

called Eha, the permittivity of the epsilon material

to the permittivity of the vacuum Jati

to epsilon zero, so if,

for example, we later want to find a

network to find the permittivity of the material, please

= FC Lon zero multiplied by

epsilon er like that This is the permittivity of the

material well I city that yes permittivity of the

material of this game is like that well then

What about the coulomb force so

if we write the coulomb force earlier, it

seems like it is a

column constant That was earlier well

actually if we write F it

will be equal to 1/4 phi Oh I see,

epsilon 0h South is this this is

a quarter of pi epsilon 0ki one well so

multiplied by Q2 divided by er squared Well

that's the initial epsilon this was the

permit

trust vacuum or permittivity of the

vacuum earlier Well so we can

derive the formula yes the formula we

derive from the previous one y from this one

we substitute yes So if for example

the effect in the material means F material

Well that's just written slowly yes F

material divided by F in what in the air

was vacuumed earlier the vacuum well what is the material

one divided by four well so 4phi

epsilon because it is in the material Bro,

this is the material Well this is called

the permittivity of this material so it's just epsilon

epsilon

coq10 so multiplied by Q2 divided by

like this again with er

squared divided by length that's 1/4 phi

through that epsilon what in vacuum

means epsilon zero like that yes Q1 multiplied by Q2

divided by er squared so try

this is the coulomb force in the material or

in this medium earlier then This is the

coulomb force in the air that was earlier so so

if we

return that this enya was

epsilon no dug epsilon er while

this is crossed out all right like that colleague

crossed out that means we just have

IPA F yes Eh material divided by F

Parcuma YouTube earlier is the same as this right

eh small only yes then it is reversed

finally it will be reversed epsilon

above Wow so f90 divided by

epsilon only eh sorry epsilon only

maybe later yeah Keya divided by

epsilon only that epsilon yes

we have tried this substitution so what F

material we divide by FP = that is

epsilon Zero we divide up epsilon = What is

epsilon no multiplied by F

ton er which is relative, finally standard,

scribble this, don't scribble,

scribble, that's it, finally, the

final formula is that the coulomb force in the

material or in the media is equal to

one per epsilon er multiplied by FB

when in the air, tuned, this is the

final formula for the coulomb force in the material, so

I think this explanation is

clear enough, please repeat it,

please study it again to be able to

understand it in detail, He remains

enthusiastic in learning, salamualaikum

warahmatullahi wabarakatuh, that

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