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1. |
In the Figure (a) and (b) shown below, the transformers are identical are ideal, except that the transformer in Figure (b) is centre-tapped. Assuming ideal diodes, the ratio of the root-mean-square (RMS) voltage across the resistor R in Figure (a) to that in Figure (b) is |
A. | \(\sqrt 2 :1\) |
B. | 2 : 1 |
C. | \(2\sqrt 2 :1\) |
D. | 4 : 1 |
Answer» C. \(2\sqrt 2 :1\) | |