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Electrostatic Potential and Capacitance
Across a metallic conductor of non-uniform cross -section, a constant potential difference is applied. The quantity which remains constant along the conductor is
Current density
Current
drift velocity
electric field
B.
Current
As the cross-sectional area of the conductor is non-uniform so current density will be different.
As, I=JA
It is clear from Eq. (i) when an area increases the current density decreases so the number of the flow of electrons will be same and thus the current will be constant.
Sponsor Area
Sponsor Area
Sponsor Area