$1.Threeresistorof2\Omega ,3\Omega and4\Omega areconnectedin\left(a\right)series\left(b\right)parallel.Findtheequivalentresis\mathrm{tan}ceineachcase.\phantom{\rule{0ex}{0ex}}2.Threeresistor,eachof2\Omega areconnectedtogethersothattheirtotalresis\mathrm{tan}ceis3\Omega .Drawadiagramtoshowthis\phantom{\rule{0ex}{0ex}}arrangementandcheckitbycalculation.$

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