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1. |
A metal sphere with 1 m radius and a surface charge density of 10 coulomb/m2 is enclosed in a cube of 10 m side. The total outward electric displacement normal to the surface of the cube is |
A. | 40 coulombs |
B. | 10 coulombs |
C. | 5 coulombs |
D. | None of these |
Answer» E. | |