Question

a conductor of uniform cross sectional area is connected to a dc source of variable voltage. Draw a graph showing variation of drift velocity of electrons as a function of current density in it.

Answer 1

A graph of straight line with the direction of slope being positive will drawn from origin.

Explanation:

• A conductor is any material through which current can easily pass.

• While DC is abbreviated as direct current. It is a type of battery.

• Variation of drift velocity and current density can be found out using the formula I = nAev$\alpha$.

• v$\alpha$ = I/A x I/ne = j x1/ne