Question 11:
Which has more resistance :
(a) a long piece of nichrome wire or a short one ?
(b) a thick piece of nichrome wire or a thin piece ?
Lakhmir Singh Physics Class 10
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(a) A long piece of nichrome wire will have more resistance as compared to the short piece of nichrome wire due to the reason that the resistivity of a conductor is directly proportional to its length.
(b) A thin piece of nichrome wire will have more resistance because of the reason that the resistivity of a conductor is in an inverse relation with the cross-section area of the conductor.
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