Repeat Exercise, but now let q1 = −4.00 nC.Exercise:The two charges q1 and q2 shown in Fig...

Repeat Exercise, but now let q1 = −4.00 nC.

Exercise:

The two charges q1 and q2 shown in Fig. have equal magnitudes. What is the direction of the net electric field due to these two charges at points A (midway between the charges), B, and C if (a) both charges are negative, (b) both charges are positive, (c) q1 is positive and q2 is negative.

Figure: