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A steady current is set up in a metallic wire of non-uniform cross-section. How is the rate of flow of electrons ( ) related to the area of cross-section ( )?

a)

b)

c)

d)

 is independent of


Question ID - 150378 | Top Ranker Answer | SaraNextGen

A steady current is set up in a metallic wire of non-uniform cross-section. How is the rate of flow of electrons ( ) related to the area of cross-section ( )?

a)

b)

c)

d)

 is independent of

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

Rate of flow of electrons in a conductor is low but number density of free electrons in a conductor is very high. The drifting of electrons over the entire length of the conductor contributes to the current throughout the conductor



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