In a semiconductor device that is biased with battery of Vo an electron will
1) move with an average constant drift velocity
2) move with a slight acceleration due to electric field
3) move with a slight deceleration due to photon scattering
4) will first accelerate then decelerate so that it's velocity remains constant
5) none of the above
Whenever a semiconductor device is biased with a battery of potential Vo carriers start moving and producing a current. Holes move in the direction of electric field and electron moves opposite to the direction of electric field and this motion of carrier describe as the drift velocity and it is constant because carries move in that direction in which they are supposed to go.
from the above explanation we can conclude that option 1 is correct
Drift Current:- Drift current is the current in semiconductor due to the drift or movement of charge carriers
In a semiconductor device that is biased with battery of Vo an electron will 1) move...
(3) An electron is projected with horizontal velocity vo 5x10s m/s into a uniform electric field of magnitude 4000 N/C pointed upwards that is presented over a horizontal distance of 2 cm. (a) Find the magnitude and direction of the force due to the electric field. Is it justifiable to ignore the gravitational force? (b) By what vertical distance will the electron be deflected when it exits the field? (c) Find the angle with respect to horizontal as it leaves...
1. An electron (q = -1.6x10-19 C, m=9.11x10-31 kg) is placed in an electric field of magnitude 3.52x104N/C which points in the positive z direction. Calculate the magnitude and direction of the acceleration of the electron. 2. An electron is initially moving in the +z direction, with a speed v=2.54x105 m/s at z=0. In the region between z=+1.50 cm and z=+2.50 cm, there is a uniform electric field of magnitude 4.10x104 N/C in the +x direction. Outside that region (z...
3. Fill the blanks and the Proof - J.J. Thomson's experiment to fine the charge-to-mass ratio of the tt) (25 points) electron (i.e. e/m; The first is the experiment of Joseph John Thomson, who first demonstrated that atoms are actually composed of aggregates of charged particles. Prior to his work, it was believed that atoms were the fundamental building blocks of matter. The first evidence contrary to this notion came when people began studying the properties of atoms in large...
1 of 15 When a field is parallel to a plane of area, the magnetic flux through the coil is A zero. B infinite. C 2. D 5. Question 2 of 15 A moving charge experiences magnetic forces because of a A magnetic flux. B magnetic field. C magnetic current. D both a and b. Question 3 of 15 Total number of magnetic field lines passing through an area is called A magnetic flux density. B magnetic flux. C emf....
Problem 3:
In an ordinary television set, the electron beam consists of
electrons shot horizontally at the television screen with a speed
of about 5 x 107 m/s. How far does a typical electron fall as it
moves the approximately 40 cm from the electron gun to the screen?
For comparison, how far would a droplet of water shot horizontally
at 2 m/s from a hose drop as it moves a horizontal distance of 40
cm?
Projectile Motion Instructions 1....
What do the positive helium ions do for the e / m apparatus? Choose the most complete, best answer. They help focus the electron beam and they emit photons which allow the beam to be seen. They help focus the electron beam. They emit photons which allow the beam to be seen. They get hot and glow. They are there so that the bulb does not implod They are there only when the electrons are not orbiting, otherwise, they move...
1) a pitcher throws a baseball at 95 mi/hr. how long will it take to go 60 ft ? 2) the walking speed of a typical adult is closest to: a) 3 mph b) 0.3 mph c) 30 mph 3) the length of a runway at a typical airport is closest to: a) 10,000 miles b) 10,000 ft c) 10,000 inches 4) there is a runway 4 at LaGuardia airport. this number 4 is a reference to: a) the...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
1. John (who is 95 kg) drives his car over an absurdly large half-circle speedbump with a radius of 5 meters. Given that his normal weight is 930 N and his apparent weight at the top of the speed-bump was 246 N, how fast did he drive over the speed bump? 2. When working in circular motion problems, what do we define as always being the positive direction? 3. When in circular motion, the net force points in what direction?...
need ans for the following questions, the last 3 pages for more
info.
Questions:
more info:
expermint e/m avr=1.71033*10^11
7 2 points of the following options, which conditions for V or I produce the largest radius of the electron beam path r? Hint: Use e/m= 2V (5/4)*aP/(Nuo Ir) Maximum land Maximum V O Maximum land Minimum V Minimum I and Maximum V Minimum I and Minimum V 8 2 points By what factor will change if the radius of the...