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NEET2024PhysicsCurrent ElectricityActual

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 the galvanometer G , the free end of J is to be placed from B at:

Options

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

Correct answer

D. 24 cm

Step-by-step solution

8 x = 12 40-x 2 x = 3 40-x 80-2 x=3 x16=x from B =40-16=24 ~cm

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