CBSE 2024 · Region 1 · Set 3 · Q7 · 1 mark
The primary and secondary coils of a transformer have $\displaystyle 500$ turns and $\displaystyle 5000$ turns respectively. The primary coil is connected to an ac source of $\displaystyle 220 \mathrm{~V}-50 \mathrm{~Hz}$. The output across the secondary coil is :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle 220 \mathrm{~V}-50 \mathrm{~Hz}$
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CBSE Class 12 Physics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.