A wire whose cross-sectional area is increasing linearly from its one end to the other, is connected across a battery of V volts.
A wire whose cross-sectional area is increasing linearly from its one end to the other, is connected across a battery of V volts. Which of the following quantities remain constant in the wire ?
(a) drift speed
(b) current density
(c) electric current
(d) electric field
Justify your answer.
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The only current through the conductor of non uniform area of cross-section is constant as the remaining quantities vary inversely with area of cross section of the conductor.
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