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NEET 2024
Exam
NEET
Year
2024
Subject
Physics
Chapter
Alternating Current

NEET 2024 · Physics · Alternating Current

A step up transformer is connected to an ac mains supply of 220 V...

A step up transformer is connected to an ac mains supply of 220 V to operate at 11000 V,8811000 \mathrm{~V}, 88 watt. The current in the secondary circuit, ignoring the power loss in the transformer, is

Options

  1. A8 mA
  2. B4 mA
  3. C0.4 A
  4. D4 A

Correct answer

A. 8 mA

Step-by-step solution

In secondary circuit, P=ViP=V i ⇒88=11000i\Rightarrow 88=11000 i ⇒i=8811×103=8×10−3 A\Rightarrow \quad i=\frac{88}{11 \times 10^3}=8 \times 10^{-3} \mathrm{~A} ⇒i=8 mA\Rightarrow \quad i=8 \mathrm{~mA}
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