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
AnnZ [28]
2 years ago
8

A single loop of wire with area A carrying a current I has a magnetic moment µ = IA. If you wanted a single loop of wire with an

area equal to the cross-sectional area of the magnet used here to have the same magnetic moment as your permanent magnet, how large a current would you need flowing through the loop?
Physics
1 answer:
viktelen [127]2 years ago
4 0

Answer:

The current would you need flowing through the loop is

I'=\frac{\mu 'I}{\mu }

Explanation:

The magnetic moment is permanent, the area is equal to:

A=\frac{\mu }{I}

The current is:

I'=\frac{\mu '}{A}

Replacing the area value, the current is:

I'=\frac{\mu 'I}{\mu }

You might be interested in
A submarine emerges 1/9 of its volume when it partially floats on the sea surface. For make it completely submerge it is necessa
AleksAgata [21]

Answer:

4,524,660 N

Explanation:

Assuming the submarine's density is uniform, 1/9th of the submarine's mass is equal to the mass of the displaced water.

m/9 = (1026 kg/m³) (50 m³)

m = 461,700 kg

mg = 4,524,660 N

3 0
2 years ago
An object with kinetic energy k explodes into two pieces, each of which moves with twice the speed of the original object.
zlopas [31]
<span>Assuming that the momenta of the two pieces are equal: when they have equal velocities, then the masses of the two pieces are also equal. Since there is no force from outside of the system, the center of mass moves on with the same velocity as before the equation. So the two pieces must fly at the side side of the mass center, i.e., they must always be at 90° to the side of the mass center. Otherwise it would not be the mass center, respectively the pieces would not have equal velocities. This is only possible, when the angle of their velocity with the initial direction is 60°. Because, cos (60°) = 1/2 = v/(2v).</span>
6 0
3 years ago
Three charges are enclosed inside a spherical closed surface. The net flux through the surface is −216 N · m2/C. If two of the c
sladkih [1.3K]

Answer:

q₃ = -4.81 nC

Explanation:

We can use the Gauss Law here:

∅ = q/∈₀

where,

∅ = Net Flux = - 216 N.m²/C

q = total charge enclosed inside sphere = ?

∈₀ = permittivity of free space = 8.85 x 10⁻¹² C/N.m²

Therefore,

- 216 N.m²/C = q / 8.85 x 10⁻¹² C²/N.m²

q = (-216 N.m²/C)(8.85 x 10⁻¹² C²/N.m²)

q = - 1.91 nC

So, the total charge will be sum of all three charges:

q = q₁ + q₂ + q₃

- 1.91 nC = 1.74 nC + 1.16 nC + q₃

q₃ = - 1.91 nC - 1.74 nC - 1.16 nC

<u>q₃ = -4.81 nC</u>

5 0
2 years ago
We know the frequency range of certain sounds are: 400-560 Hz, what are the ranges of wavelength in meters when the signal trans
Ksivusya [100]

Answer:

Range of wavelength will be 5.35\times 10^5m to 7.5\times 10^5m

Explanation:

We have given range of frequency is 400-560 Hz

Speed of the light c=3\times 10^8m/sec

We have to find the range of the wavelength of signal transmitted

Ween know that velocity is given by v=\lambda f, here \lambda is wavelength and f is frequency

So for 400 Hz frequency wavelength will be \lambda =\frac{c}{f}=\frac{3\times 10^8}{400}=7.5\times 10^5m

And wavelength for frequency 560 Hz \lambda =\frac{c}{f}=\frac{3\times 10^8}{560}=5.35\times 10^5m

So range of wavelength will be 5.35\times 10^5m to 7.5\times 10^5m

8 0
3 years ago
The greatest wind speed recorded on Earth’s surface is 231 miles per hour. What is the speed in kilometers per hour?
Contact [7]
It would be  371.758hole this helps

4 0
3 years ago
Other questions:
  • A car travels along a straight line at a constant speed of 53.0 mi/h for a distance d and then another distance d in the same di
    5·1 answer
  • A fortnite is an old English term that means 14 days. How many seconds are in a fortnite?
    12·2 answers
  • If one light bulb burns out in a string of lights, and the rest stay lit, it is reasonable to assume that the lights are wired i
    9·1 answer
  • Which factors are involved in earthquakes formation (multiple choice)
    15·2 answers
  • You have a spring with k = 640 N/m connected to a mass with m = 10 kg. You start the system oscillating and measure the velocity
    12·1 answer
  • What direction does the earth rotate?
    14·1 answer
  • Normal force is exerted _____to the surface of an object.
    14·2 answers
  • What would the separation between two identical objects, one carrying 4 C of positive charge and the other 4 C of negative charg
    11·1 answer
  • Explain how air pollution impacts each of Earth's systems.
    14·1 answer
  • A runner slows down after completing works her deceleration is 0.25m/s after 5 sec she is traveling at 4m/s determine her initia
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!