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NEET2009PhysicsCurrent ElectricityActual

A student measures the terminal potential difference (V) of a cell (of emf and internal) resistance r ) as a function of the current (I) flowing through it. The slope and intercept of the graph between V and I , then respectively equal to :

Options

  1. A- and r
  2. Band -r
  3. C- r and
  4. Dr and -

Correct answer

C. - r and

Step-by-step solution

aligned & E = V + Ir & V = E - Ir & Comparing with y = mx + c & Slope =- r , intercept = E aligned

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