Why does a thick wire have less electrical resistance than a thin wire??

Asked by Vatsal Aeran | 17th Jul, 2013, 03:58: PM

Expert Answer:

Thick wire will have less electrical resistance than a thin wire because a larger area will allow more current to flow past a given point in a given amount of time. Think of traffic on a highway as an analogy: 4 lanes moves much faster than 1 lane since additional lanes allow more room for the cars to travel. It's the same for electrons moving through a wire; more space allows more to travel.

Answered by  | 17th Jul, 2013, 10:15: PM

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