Yokka Stars

Task id9137

Task id9137

Seller: nerdmavr

Price: 0.10 USD

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Product description

A hollow sphere with center O is uniformly charged with electricity. At the center of the ball the potential is 100 V, and at point A (OA = 30 cm) the potential is 50 V. What is the radius of the ball?

Additional information

Detailed solution. Format png