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There is a doubt regarding area of cross section... We know resistance z inversely proportional to area of cross section. But my ques z in greater area of cross sec. there are more no. of electrons comparetively so more collisons occur & less electric current flows & resistance should be high . Then how greater area of cross sec. can offer LOW resistance????

There is a doubt regarding area of cross section... We know resistance z inversely proportional to area of cross section. But my ques z in greater area of cross sec. there are more no. of electrons comparetively so more collisons occur & less electric current flows & resistance should be high . Then how greater area of cross sec. can offer LOW resistance????

Grade:11

1 Answers

anushek vikram singh
33 Points
11 years ago
actually current is the rate of flow of charges i.e. rate of flow of electrons. Everything ends here. Larger the area , large number of electrons hence large is the rate of their flow!!!!!!!!!

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