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1. |
The reciprocity theorem states that (Where symbols have their usual meanings) |
A. | F 12 = F 21 |
B. | A 1 F 12 = A 2 F 21 |
C. | A 1 F 21 = A 2 F 12 |
D. | A 2 F 21 = A 1 F 12 |
Answer» C. A 1 F 21 = A 2 F 12 | |