×
Detail Form
We will send your result on your email id and phone no. please fill detail
1.
Two conducting spheres of radii 
and 
having charges 
and 
respectively are connected to each other. There is
and having charges and respectively are connected to each other. There is
2.
Kinetic energy of an electron accelerated in a potential difference of 
is
is
3.
A parallel plate capacitor of capacity 
is charged to a potential 
(i) The energy stored in the capacitor when the battery is disconnected and the separation is doubled
(ii) The energy stored in the capacitor when the charging battery is kept connected and the separation between the capacitor plates is doubled is
. Then 
E value is
is charged to a potential (i) The energy stored in the capacitor when the battery is disconnected and the separation is doubled
(ii) The energy stored in the capacitor when the charging battery is kept connected and the separation between the capacitor plates is doubled is
4.
Figures below show regular hexagons, which charges at the vertices. In which of the following cases the electric field at the centre is not zero
5.
A simple pendulum of period 
has a metal bob which is negatively charged. If it is allowed to oscillate above a positively charged metal plate, its period will
has a metal bob which is negatively charged. If it is allowed to oscillate above a positively charged metal plate, its period will