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1.
Two equally charged small balls placed at a fixed distance experience a force F. A similar uncharged ball after touching one of them is placed at the middle point between the two balls. The force experienced by this ball is
2.
An electric field is given by
. The work done in moving a 1 C charge from 
A =
m to B =
m is
. The work done in moving a 1 C charge from A =m to B =m is
3.
Two point changes 
and 
are held fixed at 
and 
respectively of a 
coordinate system, then
and are held fixed at and respectively of a coordinate system, then
4.
Two capacitors each of capacity 2
F are connected in parallel. If they are connected to 100 V battery ,then energy stored in them is
F are connected in parallel. If they are connected to 100 V battery ,then energy stored in them is
5.
4 point charges each +q is placed on the circumference of a circle of diameter 
in such a way that they form a square. The potential at the centre is
in such a way that they form a square. The potential at the centre is