Choose the right answer from the following

Eight dipoles of equal magnitude are placed inside a cube. The total electric flux coming out of the cube will be _____.

  1. \(\frac{8e}{\varepsilon _0}\)
  2. \(\frac{e}{\varepsilon _0}\)
  3. \(\frac{16e}{\varepsilon _0}\)
  4. 0

Answer: The total electric flux coming out of the cube will be zero.

Explanation: The electric flux given by the total charge enclosed by the surface multiplied by 1/ε0.

The net charge of the dipole is zero because it consists of two equal and opposite charge. Hence, the net charge of the eight dipoles enclosed inside a cube is zero.  Therefore, the total electric flux coming out of the cube will be zero.

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