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NEET 2024
Exam
NEET
Year
2024
Subject
Physics
Chapter
Current Electricity

NEET 2024 · Physics · Current Electricity

The given circuit shows a uniform straight wire A B of 40 cm length...

The given circuit shows a uniform straight wire ABA B of 40 cm length fixed at both ends. In order to get zero reading in the galvanometer GG, the free end of JJ is to be placed from BB at: The given circuit shows a uniform straight wire A B of 40 cm length fixed at both ends. In order to get zero reading in

Options

  1. A32 cm
  2. B8 cm
  3. C16 cm
  4. D24 cm

Correct answer

D. 24 cm

Step-by-step solution

8x=1240−x\frac{8}{x}=\frac{12}{40-x} 2x=340−x\frac{2}{x}=\frac{3}{40-x} 80−2x=3x80-2 x=3 x 16=x16=x from B =40−16=24 cm=40-16=24 \mathrm{~cm} The given circuit shows a uniform straight wire A B of 40 cm length fixed at both ends. In order to get zero reading in
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