Will current flow more easily through a thick wire or a thin wire of the same material, when connected to the same source? Why?




Resistance is inversely proportional to Area of cross-section. 


A thin wire would have small area of cross section, hence more resistance.

Since the resistance is more, current would not flow easily.


A thick wire would have large area of cross section, hence less resistance.

Since the resistance is less, current would flow easily.


Hence, current would flow more easily in a thick wire.

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  1. Class 10
  2. Chapter 12 Class 10 - Electricity

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.