Question

An infinite number of electric charges each equal
to 2 nano coulombs magnitude are placed along
x-axis at x=1 cm, x=3 cm x=9 cm, x = 27 cm,
so on. In this setup if consecutive charges
have opposite sign, then electric potential at x = 0
is
1) 1250 V
2) 1350V
3) 2700 V
4) 2500 V​

Answer 1

Answer:

don't know answer Express properly