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
bekas [8.4K]
3 years ago
14

The magnetic field produced by the solenoid in a magnetic resonance imaging (MRI) system designed for measurements on whole huma

n bodies has a field strength of 7.0 T, and the current in the solenoid is 2.0 \times 10^{2} A. What is the number of turns per meter of length of the solenoid
Physics
2 answers:
Svet_ta [14]3 years ago
8 0

Answer:

Explanation:

Magnetic field, B = 7 T

Current , i = 2 x 100 A

let n be the number of turns per unit length.

The magnetic field due to a solenoid is given by

B=\mu _{0}ni

7=4\times 31.4\times 10^{-7}\times n\times 200

n = 27866.24 turns per metre

Vesna [10]3 years ago
7 0

Answer:

Number of turns per unit length will be n=2.786\times 10^4turns/m

Explanation:

We have given that strength of the magnetic field produced by the solenoid B = 7 T

Current in the solenoid i = 200 A

Let the number of turns per unit length is n

Magnetic field due to solenoid is given as B=\mu ni here \mu is permeability of free space n is number of turns per unit length and i is current

So 7=4\pi \times 10^{-7}\times  n\times 200

n=2.786\times 10^4turns/m

You might be interested in
A power boat pulls a water skier 2.6 km maintaining a
Luba_88 [7]

Answer:

W = 650 [kJ]

Explanation:

The definition of work is denoted by the product of force by the distance traveled by the body, this distance traveled corresponds to the direction of the force.

In this case we have:

d = distance = 2.6[km] = 2600 [m]

F = force = 250 [N]

W = F*d = 250 * 2600 = 650000 [J] or 650 [kJ]

7 0
3 years ago
The components of a 10.8-meters-per-second velocity at an angle of 34.° above the horizontal are
Kisachek [45]

Answer:

6.0 m/s vertical and 9.0 m/s horizontal

Explanation:

For the vertical component, we use the formula:

  • Sin(34°) = <em>y</em> / 10.8

Then we <u>solve for </u><u><em>y</em></u>:

  • 0.559 = <em>y</em> / 10.8
  • <em>y </em>= 6.0

And for the horizontal component, we use the formula:

  • Cos(34°) = <em>x</em> / 10.8

Then we <u>solve for </u><u><em>x</em></u><u>:</u>

  • 0.829 = <em>x</em> / 10.8
  • <em>y </em>= 9.0

So the answer is " 6.0 m/s vertical and 9.0 m/s horizontal".

3 0
3 years ago
On a sunny summer day, why does a white car with a light-colored interior stay cooler than a black car with a dark-colored inter
Oduvanchick [21]

Answer: Solar radiation reflects off the lighter colours, away from the car, thus keeping the car cool

Explanation: This is because lighter colors reflect a good amount of radiation while darker colors absorb it. Just like, Antarctica hasn't completely melted because it reflects a lot of the heat that is acting upon it. Or, you notice that you get hotter when you wear a black shirt opposed to a white one.

8 0
3 years ago
Find :
Pepsi [2]

Answer:

Explanation:

b) Gravity reduces the initial upward velocity to zero in a time of

t = v/g = 40/10 = 4 s

a) h =  v₀t + ½gt² = 40(4) +  ½(-10)4² = 80 m

or

v² = u² + 2as

h = (0² - 40²) / 2(-10) = 80 m

8 0
2 years ago
PLEASE ANSWER FAST!!
nataly862011 [7]
I think that it’s false I might be wrong but I want the points
7 0
3 years ago
Read 2 more answers
Other questions:
  • An electric motor is traversed by 3.10²º electrons in 6 seconds. Determine the intensity of the current passing through the moto
    6·1 answer
  • What is a cool example of newtons 3rd law?
    12·2 answers
  • Which of the following would NOT be a cause of beach erosion?
    12·2 answers
  • Head gear is required for many sports and can be the most important piece of safety equipment you can have. Question 2 options:
    10·2 answers
  • The picture is there. Please help
    14·1 answer
  • A hoop of mass 2 kg, radius 0.5 m is rotating about its center with an angular speed of 3 rad's. A force of 10N is applied tange
    8·1 answer
  • The spread of fire from the ground floor to an upper floor of a building primarily due to heat transfer by
    9·1 answer
  • Assuming that the density of a person is the same as the density of water, what buoyant force does the atmosphere exert on a per
    9·1 answer
  • You are to drive to an interview in another town, at a distance of 310 km on an expressway. The interview is at 11:15 a.m. You p
    7·1 answer
  • The light reactions could be viewed as analogous to a hydro-electric dam. In that case, the wall of the dam that holds back the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!