Under an external electric field electrons drift slowly inside the con

1.	Under an external electric field electrons drift slowly inside the conductor.1. The velocity of drift is1 mm/s105 m/s3 × 108 m/s3 × 109 m/s2. What is meant by relaxation time?3. Write an expression for drift velocity in terms of relaxation time.4. When temperature increases what happens to drift velocity?
Answer» 1. 1 mm/s. 2. The average time between two successive collision is called relaxation time. 3. V_d = \(\frac{eE}{m}t\) 4. We know drift velocity V_d = \(\frac{eE}{m}t\) When temperature increases, relaxation time decreases. As a result drift velocity decreases.

Under an external electric field electrons drift slowly inside the conductor.1. The velocity of drift is1 mm/s105 m/s3 × 108 m/s3 × 109 m/s2. What is meant by relaxation time?3. Write an expression for drift velocity in terms of relaxation time.4. When temperature increases what happens to drift velocity?

Answer»

1. 1 mm/s.

2. The average time between two successive collision is called relaxation time.

3. V_d = \(\frac{eE}{m}t\)

4. We know drift velocity

V_d = \(\frac{eE}{m}t\)

When temperature increases, relaxation time decreases. As a result drift velocity decreases.