A sample of N-type silicon is at the room temperature. When an electric field with a strength of 1000V /cm is applied to the sample, the hole velocity is measured and found to be 2 × 105 cm/sec.

a. Estimate the thermal equilibrium electron and hole densities, indicating which is the minority carrier. [5 pts]

b. Find the position of EF with respect to Ec and Ev. [10 pts]

c. The sample is used to make an integrated circuit resistor. The width and height of the sample are 10µm and 1.5µm, respectively, and the length of the sample is 20µm. Calculate the resistance of the sa]

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.