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There are 200cells of emf 2v and internal resistance 1ohm. There are m rows having n cells in each row. If the combination have a net emf of 50v. Then find m,n and internal resistance ?

There are 200cells of emf 2v and internal resistance 1ohm There are m rows having n cells in each row If the combination have a net emf of 50v Then find mn and class=

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Answer:

See below

Explanation:

Each parallel row = 50 v   so there is 25 cells in each  (2 v each)

  200 cells / 25 cells / row = 8 rows  of 25 cells each

    the equivalent resistance is

          each row has resistance = 25 ohms

               equivalent resistance =

                            1 / ( 8 * 1/25) = 3.125 ohms

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