Two identical electric dipoles, having charge q and dipole length 2d, are kept perpendicular to each other. The net dipole moment of the system will be
Answers
Answered by
0
Explanation:
The two dipoles are placed at an angle of 120
0
The dipole moment of AB is directed towards B
and that of cd is directed towards c
Hence,
the resultant dipole moment is given as
R=
P
2
+P
2
+2PPcos120
=
2p
2
−
2
2p
2
=p
when the system is subjected to an electric field ,there is a to sque
acting on the dipole.
The field IS directed towards X-axis .The angle COR in the
above diagram will be 60
0
.
Hence,the angle between the resultant dipole moment and electric field
is 90
0
−60
0
=30
0
∴ torque on the system is
τ=PEsinθ=PEsin30=
2
PE
The direction of torque is perpendicular to both P and E
Similar questions