Networks Analysis and Synthesis

Q1: A current is flowing through a conductor with non-uniform area of cross-section. Then

A current will be different at different cross-sections.

B current will be the same at all the cross-sections.

C current will be different but current density will be same at all the cross-sections

D current will be the same but current density will be different at different cross-sections.

ANS:D - 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.



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