DC Circuit MCQ Short Questions Answers- Resistance in Series

Thursday, 5 December 2013

DC Circuit MCQ Short Questions Answers- Resistance in Series

  • When resistance is connected in series with the cell is halved, the current is not quite doubled, but is slightly less than why?
          This is due to the internal resistance r of the cell. Present transmitted by cell
          I = E / R+r ,
          When the external resistance R may R / 2, the current will be slightly less than 2I.

               
           

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