1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melisa1 [442]
3 years ago
11

Contrast the electron and hole drift velocities through a 10 um (micro meter) layer of intrinsic silicon across which a voltage

of 5V is imposed. Let up = 480cm2/Vs and un=1350cm2/Vs.
Engineering
1 answer:
rodikova [14]3 years ago
8 0

Answer:

Explanation:

Since we are considering electron and hole drift velocities, then electric field E will have to be taken into consideration as well.

Where E = V/d...... 1

Drift velocity (u) = -μE. For electron.... 2

Drift velocity (v) = μE. For hole...... 3

Given that : V = 5V and d = 10 um (micro meter)

From equation 1

E = V/d

E = 5V/10×10^-4cm

E = 5V ÷1/1000

E = 5×1000

E = 5000v/cm

From equation 2

Un = -μE.

Un = - 1350cm^2/vs × 5000

= -6750000cm/s

From equation 3

Vp = μE

= 480cm^2/vs × 5000

= 2400000cm/s

Since it was stated in the question that we should contrast between hole drift and electron drift.

6750000/2400000

= 2.8125

Hence the electron drift velocity is 2.8 times that of hole drift velocity indicating that the speed of the electron through the silicon was faster.

You might be interested in
I don’t understand this
blondinia [14]

Answer:

Sorry for the delayed response- Right now I don't have time to give you the answer, but I really want to help so I'll try to phrase it in a easier way to understand things: Basically what you need to do for this problem is find the area of the base of the figure (which means length x width) and then you would simply find the volume of 160cm^{2} by finding the length of each side of the figure, find the length of the figure, find the height of the figure and then find the radius.

Have an amazing day and I hope this can somewhat help :)

7 0
3 years ago
What does a nuclear reactor smell like... idk im bored.
Lera25 [3.4K]

Answer:

If i had to guess, not the most amazing smell in the world, but i wouldn't know xD

3 0
3 years ago
Read 2 more answers
A 240V single phase 6000 W heavy duty commercial electric heater runs constantly for 36 hours. If electricity cost $0.13/kWh, ho
Aloiza [94]

Answer:

A. $28

Explanation:

We have the load to be 240V

6000W will be converted to kilowatts

6000/1000 = 6kW

Time heater runs for 36 hours

Cost of electricity = $0.13/Kwh

The question needs us to find cost of running this electric heater

Total kilowatts

= 6kw x 36 hours

= 216kwh

Then the total cost = 216 x $0.13

= 28.08

= $28

5 0
2 years ago
Read 2 more answers
The pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25°C, the pres
kirza4 [7]

Answer:

ΔP=19.76 KPa

\Delta m=10^{-3}\ gm

Explanation:

Given that

T_1= 25C,  P_1= 210 \KPa \gauge

atmospheric pressure = 100 kPa.

So absolute pressure = Atmospheric pressure + gauge pressure

P_1=210+100\ KPa (absolute)

P_1=310\ KPa (absolute)

Here volume of air is constant .We know that for constant volume pressure

\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}

here

T_2= 44C

T_1=273+25=298K

T_2=273+44=317K

\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}

\dfrac{310}{298}=\dfrac{P_2}{317}

P_2=329.76\ KPa (absolute)

So rise in pressure

\Delta P=P_1-P_2

ΔP=329.76-310 KPa

ΔP=19.76 KPa

m_1=\dfrac{P_1V}{RT_1}

m_1=\dfrac{310\times 0.025}{0.287\times 298}

m_1=0.090615\ kg

m_2=\dfrac{P_2V}{RT_2}

m_2=\dfrac{329.76\times 0.025}{0.287\times 317}

m_2=0.090614\ kg

Δm=0.090615 - 0.090614 kg

\Delta m=10^{-3}\ gm

4 0
3 years ago
True or False: In a technical drawing dimensions are optional. The manufacturer can decide on their own how big or small to make
Law Incorporation [45]

Answer:

False

Explanation:

4 0
3 years ago
Other questions:
  • Convert mechanical energy into electric energy. What can he use?
    13·1 answer
  • Design a digital integrator using the impulse invariance method. Find and give a rough sketch of the amplitude response, and com
    15·1 answer
  • Write the following statements as Prolog clauses, in the order given: If it is raining or snowing, then there is precipitation.
    15·1 answer
  • The steady-state data listed below are claimed for a power cycle operating between hot and cold reservoirs at 1200K and 400K, re
    15·1 answer
  • Water vapor at 5 bar, 320°C enters a turbine operating at steady state with a volumetric flow rate of 0.65 m3/s and expands adia
    6·1 answer
  • what is an example of an innovative solution to an engineering problem? Explain briefly why you chose this answer.
    14·1 answer
  • A _______ contact allows current to flow when the switch's operator is not activated.?
    6·1 answer
  • ¿Cuál es el objetivo de la participación del gobierno en la economía?
    6·1 answer
  • What happens if you leave your car on while pumping gas
    8·1 answer
  • In a typical American building, most modern lighting systems must use what voltage?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!