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Electrostatics question

2010 · Shift 2 · Q46
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Electrostatics question

2010 · Shift 2 · Q46

JEE AdvancedPhysicsElectrostaticsMCQ+2 / −0.5
A uniformly charged thin spherical shell of radius RRR carries uniform surface charge density of σ\sigmaσ per unit area. It is made of two hemispherical shells, held together by pressing them with force FFF(see figure). FFF is proportional to IIT-JEE 2010 Paper 2 Offline Physics - Electrostatics Question 64 English
  1. A
    1ε0σ2R2{1 \over {{\varepsilon _0}}}{\sigma ^2}{R^2}ε0​1​σ2R2
  2. B
    1ε0σ2R{1 \over {{\varepsilon _0}}}{\sigma ^2}Rε0​1​σ2R
  3. C
    1ε0σ2R{1 \over {{\varepsilon _0}}}{{{\sigma ^2}} \over R}ε0​1​Rσ2​
  4. D
    1ε0σ2R2{1 \over {{\varepsilon _0}}}{{{\sigma ^2}} \over {{R^2}}}ε0​1​R2σ2​
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