An electric dipole with dipole moment 4 ×10-9cm is aligned at 30° wi

1.	An electric dipole with dipole moment 4 ×10-9cm is aligned at 30° with the direction of a uniform electric field of magnitude 5 × 104 NC1. Calculate the magnitude of the torque acting on the dipole.
Answer» Here, p = 4 x 10^-9 cm E = 5 x 10⁴ Nc^-1 θ = 30° Magnitude of torque acting on the dipole, τ = pE sinθ = 4 x 10^-9 x 5 x 10⁴ sin30° = 2 x 10^-4 x \(\frac{1}{2}\) = 10^-4 Nm

An electric dipole with dipole moment 4 ×10-9cm is aligned at 30° with the direction of a uniform electric field of magnitude 5 × 104 NC1. Calculate the magnitude of the torque acting on the dipole.

Answer»

Here,

p = 4 x 10^-9 cm

E = 5 x 10⁴ Nc^-1

θ = 30°

Magnitude of torque acting on the dipole,

τ = pE sinθ

= 4 x 10^-9 x 5 x 10⁴ sin30°

= 2 x 10^-4 x \(\frac{1}{2}\)

= 10^-4 Nm