Resistance $n$,each of $r \ \Omega$,when connected in parallel give an equivalent resistance of $R \ \Omega$. If these resistances were connected in series,the combination would have a resistance in $\Omega$,equal to

  • A
    $R/n$
  • B
    $R/n^2$
  • C
    $nR$
  • D
    $n^2R$

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