NEET Physics Electric Field MCQ Question
A uniformly charged conducting sphere has a diameter of 2.4 m and a surface charge density of 80.0 mC/m². What is the total electric flux leaving the surface of the sphere?
4.32 × 10⁶ Nm²/C
5.76 × 10⁶ Nm²/C
6.08 × 10⁶ Nm²/C
3.84 × 10⁶ Nm²/C
Correct Answer
Detailed Explanation
The total electric flux is given by Gauss's law as the charge enclosed divided by ε₀. The charge Q = surface charge density × surface area = 80.0 × 10⁻³ C/m² × 4π(1.2)² m². Thus, the flux leaving the surface is 5.76 × 10⁶ Nm²/C.
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