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JIPMER2019PhysicsCurrent Electricity

A circuit contain two resistance R₁ and R₂ in series. Find the ratio of input voltage to voltage of R ₂ .

Options

  1. AR₂ R₁+R₂
  2. BR₁+R₂ R₂
  3. CR₁+R₂ R₁
  4. DR₁ R₁+R₂

Correct answer

B. R₁+R₂ R₂

Step-by-step solution

The situation is shown in the circuit diagram. Current flowing through the circuit, I= V_i R₁+R₂ Voltage across R₂, V₂=R₂, V₂= V_i R₂ R₁+R₂ R₁+R₂ R₂ = V_i V₂ V_i V₂ = R₁+R₂ R₂

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