Two identical charged spheres are suspended by strings of equal… | JEE Main 2024 (1 Feb, Shift 1)

Q34JEE Main 2024 · 1 FEB · SHIFT 1Medium

Electric Charge & Coulomb's Law

Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle $\theta$ with each other. When suspended in water the angle remains the same. If density of the material of the sphere is $1.5\text{ g/cc}$ , the dielectric constant of water will be __________. (Take density of water $= 1\text{ g/cc}$ )

Numerical answer type. Work it out, then open the answer.

Show answer and solution

Answer: 3

Same angle in air and liquid needs $K = \dfrac{\rho}{\rho - \sigma}$ (electric force $\div K$ , weight reduced by buoyancy).
$K = \dfrac{1.5}{1.5 - 1} = 3$
Dielectric constant of water $= 3$ .

Report a mistake

More questions on Electric Charge & Coulomb's Law

Two identical charged spheres are suspended by strings of equal lengths. The strings make…JEE Main 2024 (30 Jan, Shift 2)
A thin metallic wire having cross sectional area of 10⁻⁴ m² is used to make a ring of…JEE Main 2024 (27 Jan, Shift 1)
Select the correct statement from the following.MHT CET 2023 (12 May, Shift 2)
Two positively charged identical spheres separated by a distance 'd' exert some force (F)…MHT CET 2023 (11 May, Shift 1)
A 10 charge is divided into two parts and placed at 1 cm distance so that the repulsive…JEE Main 2023 (13 Apr, Shift 2)
If two charges q ₁ and q ₂ are separated with distance 'd' and placed in a medium of…JEE Main 2023 (24 Jan, Shift 1)
Three point charges q, -2q and 2q are placed on x -axis at a distance x = 0, x = 3/4R and…JEE Main 2023 (13 Apr, Shift 2)
As shown in the figure, a configuration of two equal point charges (q₀ = +2) is placed on…JEE Main 2023 (11 Apr, Shift 1)

Electric Charge & Coulomb's Law question from JEE Main 2024 (1 Feb, Shift 1)

More questions on Electric Charge & Coulomb's Law