An ideal transformer has 100 turns in the primary and \( \mathrm{P}...

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An ideal transformer has 100 turns in the primary and
\( \mathrm{P} \) 250 turns in the secondary. The peak value of the ac

W is \( 28 \mathrm{~V} \). The r.m.s. secondary voltage is nearest to
(1) \( 50 \mathrm{~V} \)
(2) \( 70 \mathrm{~V} \)
(3) \( 100 \mathrm{~V} \)
(4) \( 40 \mathrm{~V} \)
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