Do electric field lines point away from positive charges or toward positive charges?

What does the tangent to an electric field line show?

If field lines are closer together in one region than another, what does that indicate about \(|\vec E|\)?

A field-line diagram around a point charge has arrows radially inward. What is the sign of the charge?

Why can two electric field lines not cross at an ordinary point in space?

A diagram assigns twice as many field lines to charge A as to charge B. What does that imply about the relative charge magnitudes, assuming the same line convention?

Sketch verbally the field-line pattern for equal and opposite charges separated by a small distance. Include where lines start, end, and are densest.

A student says field lines show the paths followed by released positive charges. Explain what is wrong or incomplete about that statement.

A proposed electrostatic field-line diagram shows a line beginning on a negative charge, two lines crossing, and denser lines far from every charge than near a charge. Identify all three representation errors and the physical rule each violates.

For charges \(+2Q\) and \(-Q\), describe how a consistent field-line diagram should allocate line counts and endpoints, including what happens to any lines that do not terminate on the negative charge.