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Electric Charges and Fields — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectric Charges and Fields1 Mark
MCQ
An electric dipole is placed in an electric field generated by a point charge.
  • A
    The net electric force on the dipole must be zero.
  • B
    The net electric force on the dipole may be zero.
  • C
    The torque on the dipole due to the field must be zero.
  • ✓
    The torque on the dipole due to the field may be zero.
✓

Answer

Correct option: D.
The torque on the dipole due to the field may be zero.

In the uniform Electric field the net electric force on the dipole is alwas zero.

In uniform Electric field the torque on the dipole due to field may be zero.

$T = 0$
Here $t Þ$ Torque
$\text{T}=2\text{qEl}\sin\text{q }\otimes\neq0$

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