On the basis of electron drift, derive an expression for resistivity of a conductor in terms of number density of free electrons and relaxation time. On what factors does resistivity of a conductor depend ?
Important Questions on Current Electricity
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 remains constant in the wire ?
drift speed
Justify your answer.
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 remains constant in the wire ?Justify your answer.
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 remains constant in the wire ?Justify your answer.
A wire whose cross-sectional area is increasing linearly from its one end to the other, is connected across a battery of volts. Which of the following quantities remains constant in the wire ?Justify your answer.
