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A current is flowing through a conductor with non-uniform area of cross-section. Then

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A current is flowing through a conductor with non-uniform area of cross-section. Then Answer: current will be the same but current density will be different at different cross-sections.

Current density = current/area of cross-section. Same current throughout the conductor. Since, area of cross-section is non-uniform, current density will be different at different cross-sections.