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1. |
Three concentric spherical shells of radii R1, R2, R3 (R1 < R2 < R3) carry charges 1, 2 and 4 coulombs, respectively. The charge in coulombs on the inner and outer surfaces respectively, of the outermost shell is |
A. | 0 and 4 |
B. | 3 and 1 |
C. | 3 and 7 |
D. | 2 and 6 |
Answer» C. 3 and 7 | |