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
Mekhanik [1.2K]
3 years ago
13

A) An electron is moving with a speed of 3.5 x105 m/s when it encounters a magnetic field of 0.60T. The direction of the magneti

c field makes an angle of60.0° with respect to the velocity of the electron. Whatis the magnitude of the magnetic force on the electron?B) Each second, 1.25 x 1019 electrons ina narrow beam pass through a small hole in a wall. The beam isperpendicular to the wall. Using Ampere’s law, determinethe magnitude of the magnetic field in the wall at a radius of0.750 m from the center of the beam.I know the answer to A is 2.9 x 10^-14 N and the answer to Bis 5.33 x 10^-7 T. Can anyone show me the steps? Ithink I've tried everything!! I will rate immediately!!!!
Physics
1 answer:
kirza4 [7]3 years ago
6 0

Given Information:  

v = 3.5x10⁵ m/s

θ = 60°

Magnetic field = 0.60 T

no. of electrons = 6.242x10¹⁸

radius = 0.750 m

Required Information:  

Magnetic force = F = ?

Magnetic field = B = ?

Answer:

Part A) F = 2.909x10⁻¹⁴ N

Part B) B = 5.34x10⁻⁷ T

Explanation:

Part A:

The magnetic force can be found using

F = qvBsin(θ)

Where q = 1.60x10⁻¹⁹ C and v is the speed of electron, B is the magnetic field and  θ is the angle between v and B.

F = 1.60x10⁻¹⁹*3.5x10⁵*0.60sin(60°)

F = 2.909x10⁻¹⁴ N

Part B:

From the Ampere's law, the magnetic field can be found using

B = μ₀I/2πr

Where μ₀ = 4πx10⁻⁷ is the permeability of free space, I is the current, and B is the magnitude of the magnetic field produced.

1 ampere of current has 6.242x10¹⁸ electrons per second so

I = 1.25x10¹⁹/6.242x10¹⁸

I = 2.0032 A

B = 4πx10⁻⁷*2.0032/2π*0.750

B = 5.34x10⁻⁷ T

You might be interested in
What Coulombs discovered almost 300<br> years ago
tamaranim1 [39]

Answer:

ummm hehe this is my time to shine

Explanation:

  MERICIA!!!!!!!!!!!!!!!!!!!!!!!

5 0
3 years ago
Read 2 more answers
crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied​
Klio2033 [76]

Answer:

 F = 5226.6 N

Explanation:

To solve a lever, the rotational equilibrium relation must be used.

We place the reference system on the fulcrum (pivot point) and assume that the positive direction is counterclockwise

         F d₁ = W d₂

where F is the applied force, W is the weight to be lifted, d₁ and d₂ are the distances from the fulcrum.

In this case the length of the lever is L = 5m, t the distance desired by the fulcrum from the weight to be lifted is

d₂ = 200 cm = 2 m

therefore the distance to the applied force is

          d₁ = L -d₂

         d₁ = 5 -2

         d₁= 3m

we clear from the equation

          F = W d₂ / d₁

          W = m g

          F = m g d₂ / d₁

we calculate

      F = 800 9.8 2/3

      F = 5226.6 N

4 0
2 years ago
What happens to the force of gravity between two masses if one mass is decreased?
Andrews [41]
<span>B. It stays the same</span>
7 0
3 years ago
Read 2 more answers
What waves have high amplitudes
Olegator [25]

-- loud sounds

-- bright lights

-- strong radio signals

-- Slinkies that can pinch you painfully

-- a tsunami in the ocean

-- earthquakes above Richter 5 or 6

5 0
3 years ago
Eva's boyfriend says he loves her, but she wants proof. In order to obtain the most trustworthy nonverbal signals of how he real
BaLLatris [955]

Answer:D) His Facial expressions when they spend time together

 

Explanation:

Eva's should carefully observe the normal verbal signs by her lover because facial expression gives the hint to listener or viewer that one is interested towards other.

Some common facial Expression are

  • Smiling Eyes:While smiling is, of course, an important expression when we speak, attempting to keep a constant  smile could make you look more like a trained sociopath than a happy, enthusiastic presenter. These enables other person to feel the good vibes out of you and left a positive impact of your presence.
  • Nod on: It is important to express interest in the feedback of your audience. No one likes an identity-centered snob. One way to show that you're actually engaged in the comments and questions they pose is by nodding while you're listening. Moving your head a little wider will help to express your attention as well.

                       

6 0
2 years ago
Other questions:
  • Select the correct answer.
    10·2 answers
  • A gas sample enclosed in a rigid metal container at room temperature (20.0∘C) has an absolute pressure p1. The container is imme
    11·1 answer
  • What is the relationship between mass and gravitational force between any two objects?
    15·1 answer
  • A hole is drilled to the center of the earth and a ball is dropped into it. When the ball is at the earth's center, compared wit
    12·1 answer
  • Is it plagiarism/copying to do a science fair project that is similar to one that has been done already, if you modify certain a
    12·2 answers
  • Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average o
    9·1 answer
  • In certain ranges of a piano keyboard, more than one string is tuned to the same note to provide extra loudness. For example, th
    6·1 answer
  • What energy is this in the image
    9·2 answers
  • 1.at constant temperature a gas occupy 50cm³ at 10mmhg calculate the work done
    14·1 answer
  • Highest common factor of 12r and 10
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!