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Question: Answered & Verified by Expert
The output voltage of a transfor mer connected to $220 \mathrm{~V}$ line is $1100 \mathrm{~V}$ at 2 Acurrent. Itsefficiency is $100 \%$. The current coming from the line is
PhysicsAlternating CurrentJEE Main
Options:
  • A $20 \mathrm{~A}$
  • B $10 \mathrm{~A}$
  • C $11 \mathrm{~A}$
  • D $22 \mathrm{~A}$
Solution:
1102 Upvotes Verified Answer
The correct answer is: $10 \mathrm{~A}$
For $100 \%$ efficiency
For $100 \%$ enciency- $V_{s} i_{s}=V_{p} i_{p}$ $1100 \times 2=220 \times i_{p}$ i.e., Primary current, $i_{p}=10 \mathrm{~A}$ PART - II (CHEMISTRY)

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