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
Shkiper50 [21]
3 years ago
10

A circular wire loop of radius 14.1 cm carries a current of 2.34 A. It is placed so that the normal to its plane makes an angle

of 49.2° with a uniform magnetic field of magnitude 12.6 T. (a) Calculate the magnitude of the magnetic dipole moment of the loop in amperes-square meters. (b) What is the magnitude of the torque acting on the loop?
Physics
1 answer:
Tomtit [17]3 years ago
7 0

Answer:

(a)  0.1460Am^2

(b) 1.3927 Nm

Explanation:

We have given that radius r=14.1cm=0.141m

Current i = 2.34 A

Angle \Theta =49.2^{\circ}

Uniform magnetic field B = 12.6 T

Area is given by A=\pi r^2=3.14\times 0.141^2=0.0624m^2

(A) We know that magnetic dipole moment is given by M=iA , here i is current and A is area

So magnetic moment M=iA=2.34\times 0.0624=0.1460Am^2

(b) We know that torque is given by

\tau =BIAsin\Theta

So torque experienced by coil will be \tau =BIAsin\Theta =12.6\times 2.34\times 0.0624\times sin49.2^{\circ}=1.3927Nm

You might be interested in
In order for convection to transfer heat, particles need to
Sergio [31]

Answer:

the answer is b mark me as the brqinlist

7 0
3 years ago
Read 2 more answers
The capacitor is now disconnected from the battery, and the plates of the capacitor are then slowly pulled apart until the separ
alexdok [17]

Answer:

U₁ = (ϵAV²)/6d

This means that the new energy of the capacitor is (1/3) of the initial energy before the increased separation.

Explanation:

The energy stored in a capacitor is given by (1/2) (CV²)

Energy in the capacitor initially

U = CV²/2

V = voltage across the plates of the capacitor

C = capacitance of the capacitor

But the capacitance of a capacitor depends on the geometry of the capacitor is given by

C = ϵA/d

ϵ = Absolute permissivity of the dielectric material

A = Cross sectional Area of the capacitor

d = separation between the capacitor

So,

U = CV²/2

Substituting for C

U = ϵAV²/2d

Now, for U₁, the new distance between plates, d₁ = 3d

U₁ = ϵAV²/2d₁

U₁ = ϵAV²/(2(3d))

U₁ = (ϵAV²)/6d

This means that the new energy of the capacitor is (1/3) of the initial energy before the increased separation.

3 0
3 years ago
How much time elapses before the two kittens collide
geniusboy [140]

Answer:

6.8 s

Explanation:

Let's say the west end of the field is position 0 m and the east end of the field is position 250 m.

The position of kitten A is:

x = 0 + 25 t

And the position of kitten B is:

x = 250 - 12 t

The kittens collide when they have the same position:

25 t = 250 - 12 t

37 t = 250

t ≈ 6.8 s

3 0
3 years ago
Suppose you have two small pith balls that are 5.5 cm apart and have equal charges of -29 nc?
zysi [14]
The question is missing, however, I guess the problem is asking for the value of the force acting between the two balls.

The Coulomb force between the two balls is:
F= k_e \frac{ q_1 q_2}{r^2}
where k_e=8.99\cdot10^9~N m^2 C^{-2} is the Coulomb's constant, q_1=q_2=29~nC=29\cdot 10^{-9}~C is the intensity of the two charges, and r=5.5~cm=0.055~m is the distance between them.

Substituting these numbers into the equation, we get
F=2.5~10^{-3}~N

The force is repulsive, because the charges have same sign and so they repel each other.
6 0
3 years ago
15. In Young’s double-slit experiment using monochromatic light, the interference pattern consists of a central _____.
levacccp [35]

Answer: In young's double slit experiment that uses monochromatic light the interference pattern formed has Central bright band with alternate dark and bright band That is option B.

Explanation: In this young experiment two small slits Namely a and b  are formed on the screen and a monochromatic light is focused on them. Wavelets come out of of this lets scintillating and overlapping each other. This we get from huyginns principal, thus forming alternate dark and bright bands with bright band at center and all bands are about one meter apart.

4 0
3 years ago
Other questions:
  • A car moved with a constant speed of 104km/hr how long will it take to travel a distance of 422.9km?
    7·1 answer
  • What energy is directly dependent upon velocity and mass?
    8·1 answer
  • According to Newton's first Law of motion, it takes forces to be balanced to move an object from its resting position.
    10·2 answers
  • A diverging lens has a focal length of 18.0 cm. An insect is placed 7.00 cm in front of the lens. What is the magnification
    6·1 answer
  • Below is an "oracle" function. An oracle function is a function presented interactively. When you type in a t value, and press t
    14·1 answer
  • Jfdojbfkkjds vdf;ifdfdi
    13·1 answer
  • What does Charles Darwin theory of natural selection state about traits
    13·2 answers
  • A car accelerates from rest at 5.75m/s2 for 4.4 sec when it runs out of pavement and runs into some mud. In the mud it accelerat
    6·1 answer
  • A glass of water sitting in direct sunlight evaporates over time. Explain this phase change in terms of the types of heat transf
    7·2 answers
  • A volume of 25 milliliters is the same as a volume of ____________________ cubic centimeters.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!