Find the electric field (magnitude and direction) at a distance w about the midpoint between two point charges, which are distanced by a distance d, and where the left charge is +q, while the right charge is –q. Comment on how the electric field looks when measured very far from both charges (w » d) and when both charges are very close together (d → 0).

Find the electric field (magnitude and direction) at a distance w about the midpoint between two point charges, which are distanced by a distance d, and where the left charge is +q, while the right charge is –q. Comment on how the electric field looks when measured very far from both charges (w » d) and when both charges are very close together (d → 0).