Thus, the effect of any motion of q1 on q2 cannot
FIGURE 1 9 Electric field at a point
due to a system of charges is the
vector sum of the electric fields at
the point due to individual charges Rationalised 2023-24
Electric Charges
and Fields
17
arise instantaneously There will be some time delay between the effect
(force on q2) and the cause (motion of q1)