Physics
General
Easy

Question

In the experiment of potentiometer wire AB is 100 cm long shown in figure When AC=40 cm , no deflection oocurs in the galvanometer. What is the value of  R ?

  1. 15Ω
  2. 18Ω
  3. 12Ω
  4. 14Ω

The correct answer is: 15Ω

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