Question

an electrically charged object that can attract on uncharged object and can either atract or repel another object without any contact between the objects. explain

Answer 1

if the electrically uncharged object is having free electrons (i.e. conductor) unlike charges will accumulate to the surface nearer to electrically charged object.
i didn't get that second question.......electric fields are invisible, there is no need of contact to attract objects

Answer 2

thanks