Verified Solution • 2025–26 Session moderate

QJEEM24Phe889: JEE Main 2024 Physics - Class 12 JEEM24Phe889 Solution: Primary side of a transformer is connected to supply. Turns…

Primary side of a transformer is connected to 230 V,50 Hz230 \mathrm{~V}, 50 \mathrm{~Hz} supply. Turns ratio of primary to secondary winding is 10:110: 1 . Load resistance connected to secondary side is 46Ω46 \Omega . The power consumed in it is :

Multiple Choice Options

  • A 11.5 W
  • B 12.5 W
  • C 10.0 W
  • D 12.0 W

Step-by-Step Verified Solution

amp;V1V2=N1N2amp;230V2=101amp;V2=23 V\begin{aligned}& \frac{V_1}{V_2}=\frac{N_1}{N_2} \\& \frac{230}{V_2}=\frac{10}{1} \\& V_2=23 \mathrm{~V}\end{aligned}

Power consumed =V22R=\frac{\mathrm{V}_2^2}{\mathrm{R}}

=23×2346=11.5 W=\frac{23 \times 23}{46}=11.5 \mathrm{~W}

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