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two terminal black box contains one of the R-L-C elements. The black box is connected to a 220 V ac supply. The current through the source is I. When a capacitance of 0.1 F is inserted in series between the source and the box, the current through the source is 2 I. The element is | |
A. | a resistance. [Wrong Answer] |
B. | an inductance. [Correct Answer] |
C. | a capacitance. [Wrong Answer] |
D. | it is not possible to determine the element. [Wrong Answer] |