A battery is connected to the conductor of non-uniform cross section area. The quantities or quantity which remains constant is-

Q. A battery is connected to the conductor of non-uniform cross section area. The quantities or quantity which remains constant is-
(i) electric field only
(ii) drift speed and electric field
(iii)electric field and current
(iv) current only

Answer: (iv) current only

Correct option is (iv), Rest all quantities change with area of cross-section of a conductor.

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