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AP EAMCET201824 Apr 2018Evening ShiftPhysicsCurrent ElectricityActual

A uniform wire of length 200 ~cm is connected to a battery, two resistors and a galvanometer as shown in the figure. The galvanometer shows null deflection when the jockey J is at 80 cm from point A . If the resistor R₂ is shunted with 30 resistance, the galvanometer shows null deflection when the jockey J is at 100 ~cm from point B . Then the values of R₁ and R₂ respectively are

Options

  1. A20 , 30
  2. B30 , 20
  3. C15 , 10
  4. D10 , 15

Correct answer

D. 10 , 15

Step-by-step solution

No solution. Refer to answer key.

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