hukum-coulomb criting translet
TRANSCRIPT
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Hukum Hukum CoulombCoulomb
Coulomb
( 1736 - 1806 )
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Similar charges repel
The charge is not a kind of tug
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Formulation of Coulomb's Formulation of Coulomb's lawlaw
Magnitude of attractive forces or repel between two large electric charge
proportional to each charge and inversely proportional to the square of the distance of
the two charges.
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+
q1
q2
r
F F
221
r
xqqkF
K = 9 x 10-9
Nm2c-2
Alat Uji Gaya Coulomb
(Neraca Puntir)
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ElektroskopElektroskop
Electroscope is a tool to determine whether an object is electrically charged
or not.
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The working principle The working principle electroscopeelectroscope
If an electrically charged object brought near the electroscope, then the electrons in the conductor ball will react according to the type of charge brought near.
In the example, if the negative charge is brought near, the electrons will move from the tip of a ball into pieces, so the two pieces become negatively charged.
The result is a repulsive force declined in both pieces so that the two pieces open.
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Gives an electric charge by inductionGives an electric charge by induction
Electrostatic induction is a separation of charges on an Electrostatic induction is a separation of charges on an object by theobject by the presence of other charged objects.presence of other charged objects.
At the time of electrically charged object brought near a neutral object, charge separation occurs at the neutral object. End of the neutral objects adjacent to the object inducer, charged the same as the object of inducer.When the object is connected to earth (for example by touch), the occurrence of electron transfer from or to the earth through the body.Once charged objects away, the object becomes a deficiency or excess of electrons that a neutral object become electrically charged.
Benda yang dimuati listrik secara induksi, jenis muatannya berlawanan
dengan jenis muatan benda yang menginduksi.
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Electric Field and Potential The electric field is the space at each point in which electric charges
experience a force of electricity.
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Direction of the electric field
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Movement of clouds in the air causes the clouds of electrically charged. Clouds near the earth (a giant ball charge) will cause an electric induction. The result will be a stepping enormous electrical charge that causes sparks. Spark jumps is called the lightning. Lightning that reaches the earth is called lightning.