JEE Main 18 March 2021 Shift 2 Solved Paper

An infinite number of point charges, each carrying 1µC charge, are placed along the Y-axis at y=1m,2m,4m,8m. The total force on a 1C point charge, placed at the origin, is x×103N. The value of x to the nearest integer, is .............. .
(Take, ‌

1

4πε0

=9×109N−m2/C2 )