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
Arturiano [62]
3 years ago
8

A piece of silicon sample has a resistivity of 0.1 ω.Cm. Its thickness is 100µm. The electron mobility is 1350cm 2 v -1sec-1. Wh

en a magnetic field of bz and an ix of 1ma is supplied, the hall voltage is found out to be -70µv. Calculate the electron concentration (#/cm3 or #/m3 ) of the silicon sample and bz (in wb/m2 ). Suppose the concentration of holes can be neglected.
Physics
1 answer:
lawyer [7]3 years ago
5 0

The answer is Rh = 135 cm^3 and B = 0.05185 wh/m^2


Explanation:

Resitivity of silicon = 0.1

thickness = 100um

so, I = ma

Required to find out concentration of electron , we know that

Rh = up

By putting in the values,

Rh = 1350 x 0.1

Rh = 135 cm^3


Now consider,

Rh = 1 / Rh.q

= 1 / Rh . q

= 1 / 135 x1.609 x10^-19

= 4.6037 x 10^16 / cm^3

Vh = BIRh / w

B = Vh w/ IRh

B = -70 x10^-6 x 100 x10^-6 / 1x 10^-3 x 135 x 10^-6

B = 0.05185 wh / m^2


You might be interested in
The nuclear equation is incomplete. Superscript 239 Subscript 94 Baseline P u + Superscript 1 Subscript 0 Baseline n yields Supe
Crank

Answer:

The particle which completes the given equation  is :_{54}^{138}\textrm{Xe}

Explanation:

The given reaction is of a fission reaction:

_{94}^{239}\textrm{Pu}+_0^1\textrm{n}\rightarrow _{40}^{100}\textrm{Zr}+_Z^A\textrm{X}+2_0^1\textrm{n}

Total mass on the reactant side is equal to the total mass on the product side:

239 + 1 = 100 +A+ 2

A = 138

Sum of atomic numbers on the reactant side is equal to the sum of atomic number on the product side:

94 + 1(0) = 40 + Z + 2(0)

Z = 54

So atomic number 54 id of Xenon.

The particle which completes the given equation  is :

_{94}^{239}\textrm{Pu}+_0^1\textrm{n}\rightarrow _{40}^{100}\textrm{Zr}+_{54}^{138}\textrm{Xe}+2_0^1\textrm{n}

3 0
3 years ago
ndicate whether the statement is true or false. Whenever we move, we alter the rate at which we move into the future. A. True B.
Ksju [112]
Whenever we move, we alter the rate at which we move into the future. This statement is true. 
4 0
3 years ago
Please view attached images. The first one is #2 and the second one is #1.
MakcuM [25]
The proton would be 2 and d a part of 1 then calculate that hope this helped
8 0
2 years ago
How many meters do you cover in a 10 km (10-K) race? 
tester [92]
10,000 meters: 1,000 meters in every kilometer.
8 0
3 years ago
The cheetah is one of the fastest-accelerating animals, because it can go from rest to 16.2 m/s (about 36 mi/h) in 2.4 s. If its
Scilla [17]
<h2>Power of cheetah is 5576.85 W = 7.48 hp</h2>

Explanation:

Power is the ratio of energy to time.

Here we need to consider kinetic energy,

Mass, m = 102 kg

Initial velocity = 0 m/s

Final velocity = 16.2 m/s

Time, t = 2.4 s

Initial kinetic energy = 0.5 x Mass x Initial velocity² = 0.5 x 102 x 0² = 0 J

Final kinetic energy = 0.5 x Mass x Final velocity² = 0.5 x 102 x 16.2² = 13384.44 J

Change in energy = Final kinetic energy - Initial kinetic energy

Change in energy = 13384.44 - 0

Change in energy = 13384.44 J

Power = 13384.44  ÷ 2.4 = 5576.85 W = 7.48 hp

Power of cheetah is 5576.85 W = 7.48 hp

7 0
3 years ago
Other questions:
  • Why electric potential of earth is taken to be zero?
    15·1 answer
  • HEY CAN ANYONE PLS ANSWER DIS!!!!!!
    6·2 answers
  • Ratio of acceleration due to grabity and universal gravitational constant
    14·1 answer
  • If a gun is fired straight up and has a muzzle velocity of 424 m/s how long will it take the bullet to reach its maximum height?
    15·1 answer
  • Light traveling through air strikes the surface of the four different materials shown. Which material reflects light but does no
    13·2 answers
  • A plant was placed in the corner of a room away from a window. What might you observe about the plant after five days?
    7·1 answer
  • If you climb two sets of stairs each with a height of 4 meters how much work will you do compared to climbing just one set of st
    7·1 answer
  • If you could travel 900 meters in 55 seconds, what is your speed?<br> (Answer in details=brainliest)
    6·1 answer
  • When acceleration and velocity are the in the same direction, the speed will​
    13·1 answer
  • What is a scientific model?Question 2 options:A group of objects that interact with each other.A complex system made of many sma
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!