Current Electricity and Electrical InstrumentEasy
Question
A steady current flows in a metalic conductor of non-uniform cross section. The quantity/ quantities constant along the length of the conductor is/are
Options
A.current , electric field and drift speed
B.drift speed only
C.current and drift speed
D.current only
Solution
i = neAvd
Drift speed, vd =
Therefore, for non uniform cross-section (different values of A) drift speed will be different sections. Only current (or rate of flow of charge) will be same.
Drift speed, vd =
Therefore, for non uniform cross-section (different values of A) drift speed will be different sections. Only current (or rate of flow of charge) will be same.
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