Electrostatic Potential And Capacitance

- Wondering what kind of questions that can be asked in next exam? Here you go!
1
JEE Advanced
Single Correct
The potential at a point x (measured in m) due to some charges situated on the x-axis is given by  V(x) = (20 /x- 4) volts. The electric field E at is given by :
A
Volt/m and in the x direction
B
Volt/m and in the x direction
C
Volt/m and in the x direction
D
Volt/m and in the x direction
2
Multiple Correct
Three capacitors 6 F, F and 4 F are connected to a battery of emf as shown in the Figure. If the point b is grounded, then :
This question has multiple correct options
A
the charge on F capacitor is 24 C.
B
the potential at a is .
C
the potential at c is .
D
the energy dissipated in the battery is J
3
4
5
6
7
Passage Type
If both the spheres are connected by a conducting wire, then
A
nothing will happen
B
some part of the energy stored in the system will convert into heat
C
charge on both spheres will be positive
D
entire amount of the energy stored in the system will convert into heat
Change in energy of the capacitor in above case is:
A
B
C
D

The potential energy of the dipole in the equilibrium position is :

A
B
C
D