The electric flux lines are starts at positive charge and ends at negative charge. And also that is always diverging one. It will not travel to positive charge from negative charge. So it will not form the closed loop.
Magnetic fields do, because there's no such thing as an isolated magnetic "pole", and a magnetic line always starts and ends at opposite poles of the same magnetized object. But electric fields...
no their is no relation between electric field and electric field lines . electric field lines are the imaginary lines which help us to know about the charge how strong it is
Yes. An electric field...