coulomb law help please (1 Viewer)

[ihatetestz]

Hey can anyone explain the coulomb law for me wikipedia is so confusing and my book is even more confusing and dont even get me started on my teacher..:jaw:

 

[Aplus]

An electric force has the following properties:

• The force is inversely proportional to the square of the separation, r, between the two particles and is directed along the line joining the particles.
• The force is proportional to the product of the charges q¹ and q² on the two particles
• The force is attractive if the charges are of opposite sign and repulsive if the charges have the same sign.

From these observations, we can express the magnitude of the electric force between two charges as:

Where k is a constant called the Coulomb constant. The unit of charge in SI units is the coulomb (C).

 

[shannonm]

^ Where the k you mentioned is equal to 1/4piEo (first term), which is commonly simplified to 9e9 (units Newton.metres^2 per C^2)

 

[Forbidden.]

Hey can anyone explain the coulomb law for me wikipedia is so confusing and my book is even more confusing and dont even get me started on my teacher..:jaw:

Where in the Preliminary syllabus is this ?

An electric force has the following properties:

• The force is inversely proportional to the square of the separation, r, between the two particles and is directed along the line joining the particles.
• The force is proportional to the product of the charges q¹ and q² on the two particles
• The force is attractive if the charges are of opposite sign and repulsive if the charges have the same sign.

From these observations, we can express the magnitude of the electric force between two charges as:

Where k is a constant called the Coulomb constant. The unit of charge in SI units is the coulomb (C).

This has been removed from the Physics syllabus (namely the formula) and is only used as a comparison with the gravitational force which is definitely in the syllabus i.e. F = Gm₁m₂/r².

 

[shannonm]

coulomb's law removed from high school physics?
absolute fucking disgrace

 

[born2b]

lol fken bullshing mate

i have a test tommorow and this coulomb bullshit has been taught to us and we dont know jack!!!

and what you just sed :dropmouth: ahhh omg!!! wtf? lol jibberish?