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JIPMER2004PhysicsCapacitance

Taking the earth to be a spherical conductor of diameter 12.8 10^3 ~km . Its capacity will be

Options

  1. A711 F
  2. B611 F
  3. C811 F
  4. D511 F

Correct answer

A. 711 F

Step-by-step solution

Here : Diameter of earth aligned & =12.8 10^3 ~km So, radius R & = 12.8 2 10^3 aligned aligned & =6.4 10^3 ~km =6.4 10^6 ~m Capacity C & =4 ₀ R = 1 9 10^9 6.4 10^6 & =711 10⁻⁶ ~F =711 F aligned

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