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
Eddi Din [679]
3 years ago
10

Two circular coils are concentric and lie in the same plane. The inner coil contains 120 turns of wire, has a radius of 0.012 m,

and carries a current of 5.0 A. The outer coil contains 165 turns and has a radius of 0.017 m. What must be the magnitude and direction (relative to the current in the inner coil) of the current in the outer coil, such that the net magnetic field at the common center of the two coils is zero
Physics
1 answer:
RUDIKE [14]3 years ago
4 0

Answer:

5.152 A

Opposite to the inner coil

Explanation:

\mu_0 = Vacuum permeability = 4\pi \times 10^{-7}\ H/m

I_o = Outer coil current

I_i = Inner coil current = 5 A

N_i = Turns in inner coil = 120

N_o = Turns in outer coil = 165

R_i = Inner radius = 0.012 m

R_o = Outer radius = 0.017 m

Putting the magnetic field as equal we have

\dfrac{\mu_0I_iN_i}{2R_i}=\dfrac{\mu_0I_oN_o}{2R_o}\\\Rightarrow I_o=I_i\dfrac{N_i}{N_o}\dfrac{R_o}{R_i}\\\Rightarrow I_o=5\times \dfrac{120}{165}\times \dfrac{0.017}{0.012}\\\Rightarrow I_o=5.152\ A

The magnitude of current is 5.152 A,

The direction of the current is opposite to that of the inner coil as they have opposing magnetic fields

You might be interested in
1. While skiing, Sam flies down a hill and hits a jump. He has a mass of 75 kg, and he leaves the jump at 18 m/s. What is his mo
Elenna [48]

1350kgm/s

Explanation:

Given parameters:

Mass of Sam = 75kg

Velocity = 18m/s

Unknown:

Momentum = ?

Solution:

Momentum is the property of a moving body with respect to its mass and velocity.

Objects in motion have momentum. The more the velocity of a body, the more its momentum. Also, the more the mass of an object, the more momentum it possess.

Momentum is a function of the mass and the velocity of a body

   Momentum = mass x velocity

   Momentum = 75 x 18 = 1350kgm/s

learn more:

Conservation of momentum brainly.com/question/2990238

#learnwithBrainly

5 0
3 years ago
Read 2 more answers
A piece of wood has a volume of 4.6 cm to the power of 3, and a mass of 3.7 g what is the density of the wood
AysviL [449]

Density is given by:

D = M/V

D = density, M = mass, V = volume

Given values:

M = 3.7g, V = 4.6cm³

Plug in and solve for D:

D = 3.7/4.6

D = 0.80g/cm³

3 0
3 years ago
In the 2008 Olympics, Jamaican sprinter Usain Bolt shocked the world as he ran the 100-meter dash in 9.69 seconds. Determine Usa
-Dominant- [34]

Answer:

His average speed was 10.3199 m/s.

Explanation:

4 0
3 years ago
At a given instant, the force on an electron is in the +z-direction (out of the page), which the electron is moving in the +x-di
Hitman42 [59]

Answer:

The direction of the B-field is in the +y-direction.

Explanation:

The corresponding formula is

F_B = qv\times B

This means, we should use right-hand rule.

Our index finger is pointed towards +x-direction (direction of velocity),

our middle finger should point towards the direction of the B-field,

and our thumb should point towards the +z-direction (direction of the force).

Since our middle finger in this situation points towards +y-direction, the B-field should be in +y-direction.

\^{x} \times \^{y} = \^{z}

3 0
3 years ago
Electrons are allowed "in between" quantized energy levels, and, thus, only specific lines are observed. The energies of atoms a
lawyer [7]

Answer:

This is because The energies of atoms are quantized.

Electrons are allowed "in between" quantized energy levels, and, thus, only specific lines are observed

5 0
3 years ago
Other questions:
  • How does mass affect the roller coasters speed?
    14·1 answer
  • Given two vectors A⃗ =−2.00i^+ 4.00 j^+ 4.00 k^ and B⃗ = 1.00 i^+ 2.00 j^−3.00k^, do the following.
    5·1 answer
  • If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a resul
    7·1 answer
  • A mass, M, is at rest on a frictionless surface, connected to an ideal horizontal spring that is unstretched. A person extends t
    8·1 answer
  • Saeed moves 50 m east then 65 m south to reach the garden. What is the displacement of Saeed?​
    11·1 answer
  • How many times a minute does your heart usually beat?
    6·2 answers
  • which part of the microscope will be used first to adjust the focus when starting with the lowest power lens?
    6·1 answer
  • Rubbing a balloon on hair is an example of static charging by....
    14·2 answers
  • After rubbing a balloon on your shirt, your hair sticks up when the balloon is near your head. Explain how tiny particles on you
    12·1 answer
  • A manufacturer supplies plastic cups that are placed under the legs of the chair
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!