( Resistivity ( ( is ( ( a ( basic property ) ) ( of ( ( materials , ) ( defined ( as ( ( electrical resistance ) ( per ( ( unit length ) ( of ( ( a wire ) ( of ( unit ( cross-sectional area ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Resistivity)) (VP (VBZ is) (NP (NP (DT a) (JJ basic) (NN property)) (PP (IN of) (NP (NP (NNS materials)) (, ,) (VP (VBN defined) (PP (IN as) (NP (NP (JJ electrical) (NN resistance)) (PP (IN per) (NP (NP (NN unit) (NN length)) (PP (IN of) (NP (NP (DT a) (NN wire)) (PP (IN of) (NP (NN unit) (JJ cross-sectional) (NN area)))))))))))))) (. .)))
Resistivity is a basic property of materials, defined as electrical resistance per unit length of a wire of unit cross-sectional area.
(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.