a
a
a
A single charge a produces a
potential Vo = 1000 V at point o
=
0
a
+9
+
a
What is the potential at point o
due to two identical charges as
shown to the right?
a
a
a
O
+9
A) 1000 V
B) 1414 V
C) 2000 V
D) 2828 V