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Electrostatics question

2025 · Shift 2 · Q39
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Electrostatics question

2025 · Shift 2 · Q39

JEE AdvancedPhysicsElectrostaticsMultiple correct+4 / −2

Six infinitely large and thin non-conducting sheets are fixed in configurations I and II. As shown in the figure, the sheets carry uniform surface charge densities which are indicated in terms of σ0\sigma_0σ0​. The separation between any two consecutive sheets is 1 μm1~\mu \text{m}1 μm. The various regions between the sheets are denoted as 1, 2, 3, 4 and 5. If σ0=9 μC/m2\sigma_0 = 9~\mu\text{C/m}^2σ0​=9 μC/m2, then which of the following statements is/are correct:

(Take permittivity of free space ϵ0=9×10−12\epsilon_0 = 9 \times 10^{-12}ϵ0​=9×10−12 F/m)

JEE Advanced 2025 Paper 2 Online Physics - Electrostatics Question 2 English
  1. A
    In region 4 of the configuration I, the magnitude of the electric field is zero.
  2. B
    In region 3 of the configuration II, the magnitude of the electric field is σ0ϵ0\dfrac{\sigma_0}{\epsilon_0}ϵ0​σ0​​.
  3. C
    Potential difference between the first and the last sheets of the configuration I is 5 V.
  4. D
    Potential difference between the first and the last sheets of the configuration II is zero.
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