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
Nana76 [90]
2 years ago
7

The Nichrome wire is replaced by a wire of the same length and diameter, and same mobile electron density but with electron mobi

lity 4 times as large as that of Nichrome. Now what is the electric field inside the wire?
Physics
2 answers:
Fed [463]2 years ago
7 0

Answer:

Explanation:

Usually, the electron drift velocity in a material is directly proportional to the electric field, which means that the electron mobility is a constant (independent of electric field).

μ × E = Vd

Where,

D = electric field

Vd = drift velocity

μ = electron mobility

μ2 = μ × 4

μ/Vd1 = 4 × μ/Vd2

Vd2 = 4 × Vd1

The electric field is the same but drift velocity increases.

Marina CMI [18]2 years ago
6 0

Answer:

The electric field inside the wire will remain the same or constant, while the drift velocity will by a factor of four.

Explanation:

Electron mobility, μ = \frac{v_d}{E}

where

v_d = Drift velocity

E = Electric field

Given that the electric field strength = 1.48 V/m,

Therefore since the electric potential depends on the length of the wire and the attached potential difference, then when the electron mobility is increased 4 times the Electric field E will be the same but the drift velocity will increase four times. That is

4·μ = \frac{4*v_d}{E}

You might be interested in
A device used to measure electric current is called a ohmmeter.<br><br> true or false
Semenov [28]
True
I hope this helps!!!
4 0
2 years ago
Read 2 more answers
An escalator is 18.3 m long. If a person stands on the escalator, it takes 47.8 s to ride from the bottom to the top. If a perso
Novay_Z [31]

Answer:

20.243 s

Explanation:

Because the escalator and person moving in the same direction, relative velocity can be calculated by summing the velocity of the escalator and velocity of the person.  

The speed of escalator can be calculated as,

v_{escalator}=\frac{x}{t}=\frac{18.3}{47.8}=0.383\ m/s

Relative velocity

v_{relative}=v_{escalator}+v_{person}\\\\v_{relative}=0.383+0.521=0.904\ m/s\\

Therefore total time required to take the person to get to the top

t=\frac{x}{v_{relative}}= \frac{18.3}{0.904}=20.243\ s

8 0
3 years ago
ASAP pls answer right I will mark brainiest . All I know is 4. Is A
Sonja [21]

Answer:

Q1: B.2 Q2: B.Waxing crescent Q3: A.Waxing Gibbous

Explanation:

4 0
2 years ago
A ray of light is projected into a glass tube that is surrounded by air. The glass has an index of refraction of 1.50 and air ha
Tamiku [17]

Answer:

θ = 41.8º

Explanation:

This is an internal total reflection exercise, the equation that describes this process is

         sin θ = n₂ / n₁

where n₂ is the index of the incident medium and n₁ the other medium must be met n₁> n₂

        θ = sin⁻¹ n₂ / n₁

let's calculate

       θ = sin⁻¹ (1.00 / 1.50)

       θ = 41.8º

4 0
3 years ago
State Archimedes' principle.​
Paraphin [41]

Answer:

Archimedes Principle states that "any body completely or partially submerged in water is acted upon by an upthrust force which is equal to the magnitude of Weight of the body."

3 0
3 years ago
Read 2 more answers
Other questions:
  • An object that’s charged has more electrons than protons. An object that’s charged has fewer electrons than protons. An object t
    7·1 answer
  • Crests of an ocean wave pass a pier every 10.0 s. if the waves are moving at 5.6 m/s, what is the wavelength of the ocean waves?
    10·1 answer
  • Two children, Ferdinand and Isabella, are playing with a waterhose on a sunny summer day. Isabella is holding the hose in herhan
    13·1 answer
  • Dimension of<br>Upthrust<br>​
    12·1 answer
  • In your own words, describe two conditions that are necessary for an eclipse to occur.
    12·1 answer
  • What is this question
    8·2 answers
  • You are locked inside the train car and want to get it moving to draw attention to your plight. There is effectively no friction
    5·1 answer
  • Is atom on the offficial repository of ubuntu ?
    7·1 answer
  • What is the displacement if I walk three blocks east two blocks south one block west and two blocks north
    13·1 answer
  • an interplantetary speedcarft moving at 20000m/s.how far will it travell in one day?(give your answer in km)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!