The V field and Relating the fiel...

The V field and Relating the field and the V field Spark jumps to nose

Two -3.0 x 10^-6-C charged point-like objects are separated by 0.20 m. Determine the potential (assuming zero volts at infinity) at a point (a) halfway between the objects and (b) 0.20 m to the side of one of the objects (and 0.40 m from the other) along a line joining them.