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Across a metallic conductor of non-uniform cross section a constant potential difference is applied.

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Across a metallic conductor of non-uniform cross section a constant potential difference is applied. The quantity which remains constant along the conductor is 

(a) drift velocity 

(b) electric field 

(c) current density 

(d) current

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1 Answer

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Best answer

Correct option  (d) current

Explanation:

The area of cross section of conductor is non uniform so current density will be different but the flow of electrons will be uniform so current will be constant.

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