Question

Why does the influence of electric field extends up to infinity?

Answer 1

$\mathrm{The}\mathrm{electric}\mathrm{field}\mathrm{of}\mathrm{a}\mathrm{charge}\mathrm{extends}\mathrm{upto}\mathrm{infinity}\mathrm{but}\mathrm{it}\mathrm{has}\mathrm{a}\mathrm{zero}\mathrm{influence}\mathrm{at}\mathrm{infinity}.$