12th Class Physics Sample Paper Physics Sample Paper-3

  • question_answer
    State the condition for maximum current to be drawn from a cell.

    Answer:

    Current drawn from a cell of emf E and internal resistance r in an external resistance R is,             \[I=E/R+r\] For maximum current, the external resistance R should be zero, i.e. the terminals of a cell must be short circuited.


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