A metallic wire will have the lowest resistance in which of the following cases ( l= length of the wire , d = diameter of the wire ) 1 point
(a) l , d
(b) 2l , d
(c) l/2 , 2d
(d) 2l , d/2
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A metallic wire will have the lowest resistance in which of the following cases ( l= length of the wire , d = diameter of the wire ) 1 point
(a) l , d
(b) 2l , d
(c) l/2 , 2d
(d) 2l , d/2
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