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KCET2008PhysicsCurrent Electricity

Two tangent galvanometers A and B are identical except in their number of turns. They are connected in series. On passing a current through them, deflections of 60^ and 30^ are produced. The ratio of the number of turns in A and B is

Options

  1. A1: 3
  2. B3: 1
  3. C1: 2
  4. D2: 1

Correct answer

B. 3: 1

Step-by-step solution

As the current and the other factors are same for both the galvanometers N N ₁ ~N ₂ = 60^ 30^ = 3 1 / 3 N ₁ ~N ₂ =3

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