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Question
A steady current flows in a metallic conductor of non uniform cross-section. The quantity that remains constant along the length of the conductor is
Options:
A .  current, electric field and drift speed   
B .  drift speed only
C .  current and drift speed  
D .  current only
Answer: Option D
:
D
The drift speed depends on A the cross sectional area of the conductor but the current is independent of A

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