DC Circuit MCQ Short Questions Answers- Resistance in Series

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.