1.

Three resistances, each of 1 ohm, are joined in parallel. Three such combinations are put in series, then the resultant resistance will be                                                      [MP PMT 1994]

A.                    9 ohm
B.                                      3 ohm
C.                    1 ohm                              
D.            \[\frac{1}{3}ohm\]
Answer» D.            \[\frac{1}{3}ohm\]


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