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A point charge causes an electric flux of -2 10^4 Nm ^2 C ⁻¹ to pass through a spherical Gaussian surface of 8.0 cm radius, centred on the charge. The value of the point charge is : (Given ₀=8.85 10⁻¹² C ^2 ~N ⁻¹ ~m ⁻² )

Options

  1. A15.7 10⁻⁸ C
  2. B17.7 10⁻⁸ C
  3. C-15.7 10⁻⁸ C
  4. D-17.7 10⁻⁸ C

Correct answer

D. -17.7 10⁻⁸ C

Step-by-step solution

aligned & Flux ( )= _ inc ₀ & aligned _ inc & = ₀ = & -17.7 10⁻⁸ C aligned aligned

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