Today in class we talked about how Coulomb's are the SI unit of a charge.
1 C= 6.24 x10^18 Electrons 1 Electron= 1.60 x10^-19
So the charge of one electron is called the Elementary charge. This charge is also the charge of 1 proton.
To find the charge on an object we use the formula Q = Ne
Q= the quantity of charge
N= number of elementary charge
e= the elementary charge (always 1.60 x10 ^-19
Ex. Calculate the charge on a metal-leaf electroscope that has an excess of 5.0 x10^10 electrons.
Q= ? Q= Ne
N= 5.0 x10^10 Q= 5.0 x10^10 (1.60 x10^-9)
e= 1.60 x10^-9 Q= -8.0 x10^-9C
Coulomb's Law
This is the formula which is applied to find the magnitude of the force of repulsion or attraction between two charges.
F=K q1q2
d^2
F= electrostatic force
q= charge (C)
d= distance (m)
k= 8.99 x10^9Nm^2/C^2 (always)
A negative force implies an attractive force.
A positive force implies a repelling force.
krystle is next
Thanks for providing information on Coulomb's law.The formulas which you have shared are use to solve the numerical of electric field.
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It's such an amazing information, thanks a lot for sharing kind of information. Your blog gives the best and the most interesting information on electronic electroscope. Thanks a ton once again.
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