A small bob of mass 100 mg and charge +10 μ C is connected to an insulating string of length 1 m. It is brought near to an infinitely long non-conducting sheet of charge density ' σ ' as shown in figure. If string subtends an angle of 45° with the sheet at equilibrium the charge density of sheet will be. (Given, ε₀ = 8.85 × 10⁻¹² F/m and acceleration due to gravity, g = 10 m/s ²)

Electrostatics: JEE Main 2025 Physics question

JEE Main 2025 · 2 Apr, Morning shift · Q33

JEE Main 20252 Apr, Morning shiftPhysicsMediumElectrostatics167× since 2002

A small bob of mass 100 mg and charge

+10\ \mu

C is connected to an insulating string of length 1 m. It is brought near to an infinitely long non-conducting sheet of charge density '

\sigma

' as shown in figure. If string subtends an angle of

45^\circ

with the sheet at equilibrium the charge density of sheet will be. (Given,

\epsilon_0 = 8.85 \times 10^{-12}

F/m and acceleration due to gravity,

g = 10

m/s

^2

)

JEE Main 2025 Electrostatics Question with Solution (2 Apr Morning shift, Q33) | JEE Arc