Not necessarily homework help but I do not understand Field lines

[Boop de Boop]

Homework Statement

This is not for homework but I have an AP physics exam on field lines and am confused about the proportionality between the charges of objects and the number of field lines.

Relevant Equations

E=(k*q)/r^2

Homework Statement: This is not for homework but I have an AP physics exam on field lines and am confused about the proportionality between the charges of objects and the number of field lines.
Homework Equations: E=(k*q)/r^2

I am struggling with the number of field lines to put based on the charges but understand the general rules surrounding field lines.

 

[Charles Link]

Field lines for a point charge in 3 dimensions really need to be drawn in 3 dimensions rather than in 2 dimensions. You can't properly illustrate the inverse square law with a 2 dimensional drawing. $\\$ If you draw them in 3 dimensions, you get a very accurate drawing of the electric field strength if you make the number of lines emanating from each point charge to be proportional to the magnitude of the charge. The "rays"="electric field lines" point away from a positive charge, and toward the charge for a negative charge. The electric field strength is proportional to the quantity of lines per unit volume (e.g. number crossing an area =adding them as vectors, and subtracting lines going in the opposite direction, etc.).

 

[haruspex]

I am struggling with the number of field lines to put based on the charges but understand the general rules surrounding field lines.

Can you be more specific about what is confusing you? How about an example question?