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Electrostatics question

2001 · Q168
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Electrostatics question

2001 · Q168

NEETPhysicsElectrostaticsMCQ+4 / −1
A charge Qμ\muμC is placed at the centre of a cube, the flux coming out from each face will be
  1. A
    Q6ε0×10−6{Q \over {6{\varepsilon _0}}} \times {10^{ - 6}}6ε0​Q​×10−6
  2. B
    Q6ε0×10−3{Q \over {6{\varepsilon _0}}} \times {10^{ - 3}}6ε0​Q​×10−3
  3. C
    Q24ε0{Q \over {24{\varepsilon _0}}}24ε0​Q​
  4. D
    Q8ε0{Q \over {8{\varepsilon _0}}}8ε0​Q​
View written solutionFree

Correct answer: A

For complete cube ϕ=Qε0×10−6\phi = {Q \over {{\varepsilon _0}}} \times {10^{ - 6}}ϕ=ε0​Q​×10−6

For each face ϕ=16Qε0×10−6\phi = {1 \over 6}{Q \over {{\varepsilon _0}}} \times {10^{ - 6}}ϕ=61​ε0​Q​×10−6

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