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

Question

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

Tardigrade Admin · Accepted Answer

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.

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

drift velocity

electric field

current density

current

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.