An electric dipole of length 1 cm is placed with the axis making an angle of 30⁰

An electric dipole of length 1 cm is placed with the axis making an angle of 30⁰ to an electric field of strength 10⁴ NC⁻¹. If it experiences a torque of Nm, the potential energy of the dipole is

Options

(a) 2.45 J
(b) 0.0245 J
(c) 245.0 J
(d) 24.5 J

Correct Answer:

24.5 J

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

View Comments (3)

  • Torque=PE sin¢
    10√2= P×10^4 sin 30°
    P=2√2×10^-3

    U=PE cos 30°
    U=2√2×10^-3× 10^4 cos 30°
    =24.5 J

  • Torque=PE sin¢
    10√2= P×10^4 sin 30°
    P=2√2×10^-3

    U=PE cos 30°
    U=2√2×10^-3× 10^4 cos 30°
    =24.5 J

  • Torque=PE sin¢
    10√2= P×10^4 sin 30°
    P=2√2×10^-3

    U=PE cos 30°
    U=2√2×10^-3× 10^4 cos 30°
    =24.5 J

Related Questions

  1. Two radiations of photons energies 1 eV and 2.5 eV, successively
  2. X-ray beam can be deflected by
  3. An electron moves on a straight line path XY as shown. The abcd is a coil adjacent
  4. A bomb of mass 30 kg at rest exploded into two pieces of masses 18 kg
  5. A glass slab consists of thin uniform layers of progressively decreasing refractive