In the Figures (a) and (b) shown below, the transformers are identical and ideal, except that the transformer in Figure (b) is centre-tapped. Assuming ideal diodes

Q. In the Figures (a) and (b) shown below, the transformers are identical and 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 ๐‘… in Figure (a) to that in Figure (b) is

(A) โˆš2:1

(B) 2:1

(C) 2โˆš2:1

(D) 4:1

Ans: 2:1

Sol:

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