( ( The ( thin ( steel wire ) ) ) ( ( is ( ( ( ( ( a ( good conductor ) ) ( of electricity ) ) , ) ( but not ) ) ( ( ( ( as ( good ( as ( the copper ) ) ) ) wire ) , ) ( which ( ( is deliberately ) ( chosen ( to ( have ( ( very low ) resistance ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ thin) (NN steel) (NN wire)) (VP (VBZ is) (NP (NP (NP (DT a) (JJ good) (NN conductor)) (PP (IN of) (NP (NN electricity)))) (, ,) (CONJP (CC but) (RB not)) (NP (NP (ADJP (RB as) (JJ good) (PP (IN as) (NP (DT the) (NN copper)))) (NN wire)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (ADVP (RB deliberately)) (VP (VBN chosen) (S (VP (TO to) (VP (VB have) (NP (ADJP (RB very) (JJ low)) (NN resistance)))))))))))) (. .)))
The thin steel wire is a good conductor of electricity, but not as good as the copper wire, which is deliberately chosen to have very low resistance.
(ROOT (S (PP (IN In) (NP (NP (NN relation)) (PP (TO to) (NP (JJ electrical) (NN current))))) (, ,) (NP (DT a) (JJ narrow) (NN wire)) (VP (MD will) (VP (VB have) (NP (JJR more) (NN resistance)) (PP (IN than) (NP (DT a) (JJ wide) (NN wire))))) (. .)))
In relation to electrical current, a narrow wire will have more resistance than a wide wire.