10 m)
E
E
−
×
×
=
=
 =  9 × 103  N C–1
The directions in which these two vectors point are indicated in
Fig 1 11 The resultant of these two vectors is
1
2
cos
cos
3
3
π
π
=
+
C
c
c
E
E
E
=  9 × 103  N C–1
EC points towards the right