ElectrostaticsHard
Question
The force between two short electric dipoles separated by a distance r is directly proportional to :
Options
A.r2
B.r4
C.r-2
D.r-4
Solution
Force on one dipole due to another
= P
where E is field due to second dipole at first dipole.
E ∝
∴
∴ Force 
= P
E ∝
Create a free account to view solution
View Solution FreeMore Electrostatics Questions
A hollow sphere of radius 5 cm is uniformly charged such that the potential on its surface is 10 volts then potential at...Two small identical spheres, each of mass 1 g and carrying same charge 10-9 C are suspended by threads of equal length. ...Point p lies on the axis of a dipole. If the dipole is rotated by 90o anti clock wise, the electric field vector at P wi...Five capactiors, each of capacitance value Care connected as show in the figure. Thecapacitance between P & R,and the ca...A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius. The inner sphere is charged to a potential 3...