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Physics · JEE | Electric Charges and Fields

हिन्दी

A point charge \( q \) is placed at a distance \( a/2 \) directly above the center of a square of side \( a \). The total electric flux through the square is:

  1. A
    \( \frac{q}{\varepsilon_0} \)
  2. B
    \( \frac{q}{6\varepsilon_0} \)
  3. C
    \( \frac{q}{4\varepsilon_0} \)
  4. D
    \( \frac{q}{2\varepsilon_0} \)
View Answer & Solution

Correct answer · Option B

\( \frac{q}{6\varepsilon_0} \)

Explanation

Imagine the square as one face of a symmetrical cube of side \( a \) with the charge at its center. Total flux through the cube is \( q/\varepsilon_0 \), so flux through one face (square) is \( \frac{1}{6} (\frac{q}{\varepsilon_0}) \).
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