Physics · 2013
JEE Main · 9 April 2013, Shift 1 · Q16
Two point dipoles of dipole moment p_1 and p_2 are at a distance x from each other and p_1 ∥ p_2. The force between the dipoles is:
Two point dipoles of dipole moment $\displaystyle \overrightarrow{\mathrm{p}_1}$ and $\displaystyle \overrightarrow{\mathrm{p}_2}$ are at a distance $\displaystyle x$ from each other and $\displaystyle \overrightarrow{\mathrm{p}_1} \| \overrightarrow{\mathrm{p}_2}$. The force between the dipoles is :
Official answer
(3)
$\displaystyle \frac{1}{4 \pi \varepsilon_0} \frac{6 p_1 p_2}{x^4}$
More from Electrostatics
- The vehicles carrying inflammable fluids usually have metallic chains touching the ground:2024
- A point charge of +12 μ C is at a distance 6 cm vertically above the centre of a square of side 12 cm as shown in figure. The magnitude of the…2021
- An electron revolves around an infinite cylindrical wire having uniform linear charge density 2 × 10^-8 C m^-1 in circular path under the influence…2023
- A positive point charge is released from rest at a distance r_o from a positive line charge with uniform density. The speed (v) of the point charge,…2019
- Six point charges are kept 60^° apart from each other on the circumference of a circle of radius R as shown in figure. The net electric field at the…2026
- A particle of charge ' -q ' and mass ' m ' moves in a circle of radius ' r ' around an infinitely long line charge of linear charge density ' +λ '.…2024
- Given below are two statements: one is labelled as Assertion and the other is labelled as Reason (R). Assertion: Work done by electric field on…2024
- Four closed surfaces and corresponding charge distributions are shown below. Let the respective electric fluxes through the surfaces be Φ_1, Φ_2, Φ_3…2017
JEE Main 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.