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JEE Main 20252 AprilMorning Shift
Exam
JEE Main
Year
2025
Date
2 April
Shift
Morning Shift
Subject
Physics
Chapter
Electrostatics

JEE Main 2025 · 2 April · Morning Shift · Physics · Electrostatics

Consider two infinitely large plane parallel conducting plates as...

Consider two infinitely large plane parallel conducting plates as shown below. The plates are uniformly charged with a surface charge density +σ+\sigma and −2σ-2 \sigma. The force experienced by a point charge +q placed at the mid point between two plates will be :
Consider two infinitely large plane parallel conducting plates as shown below. The plates are uniformly charged with a

Options

  1. Aσq4ϵ0\frac{\sigma q}{4 \epsilon_0}
  2. B3σq2ϵ0\frac{3 \sigma q}{2 \epsilon_0}
  3. C3σq4∈0\frac{3 \sigma q}{4 \in_0}
  4. Dσq2ϵ0\frac{\sigma q}{2 \epsilon_0}

Correct answer

B. 3σq2ϵ0\frac{3 \sigma q}{2 \epsilon_0}

Step-by-step solution

Consider two infinitely large plane parallel conducting plates as shown below. The plates are uniformly charged with a
Final charge distribution will beConsider two infinitely large plane parallel conducting plates as shown below. The plates are uniformly charged with a
∴Fnet=3σ2ϵ0q\therefore \mathrm{F}_{\mathrm{net}}=\frac{3 \sigma}{2 \epsilon_0} \mathrm{q}
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