Finding the Capacitance of the Earth

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Suppose that the radius of Earth is 6400 km. Then what will be the capacitance of the Earth in micro farade unit?
 
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Is this homework?
 
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DrClaude said:
Is this homework?
No sir..just self thinking
 
Did you try Googling for something like "capacitance of a sphere"? What did you find?
 
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