What is the total charge on earths surface implied. explain, Ask an Expert

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Q. The electric field just above the surface of Earth has been measured to typically be 158 N/C pointing downward

What is the total charge on Earth's surface implied by this measurement?

Q. What are the strength and direction of an electric field that will balance the weight of a 1.1 g plastic sphere that has been charged to -3.6 nC?

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