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
8

certain superconducting magnet in the form of a solenoid of length 0.34 m can generate a magnetic field of 6.5 T in its core whe

n its coils carry a current of 90 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the number of turns in the solenoid.
Physics
1 answer:
densk [106]3 years ago
8 0

Answer:

The number of turns in the solenoid is 1.95 x 10⁴.

Explanation:

given information:

the length of solenoid, L = 0.34 m

magnetic field, B = 6.5 T

current, I = 90 A

to find the number of turn in solenoid, we can start from the magnetic field equation,

B = μ₀nI, n = N/L

B = magnetic field (T)

μ₀ = permeability (4π × 10⁻⁷ T.m/A)

n = the number turn per unit length (turn/m)

I = current (A)

N = the number turn in solenoid

L = the length of solenoid

thus,

B = μ₀IN/L

N = B L/μ₀I

   = (6.5) (0.34)/(4π × 10⁻⁷) (90)

   = 1.95 x 10⁴ turn

You might be interested in
The bolts on a car wheel require tightening to a torque of 4 N*m. If a 9 cm long wrench is used, what is the magnitude of the fo
notsponge [240]

Answer:

320N

Explanation:

The magnitude of the torque required is expressed using the formula;

T = Fr sin theta where;

F is the force

r is the radius = 9cm = 0.09m

theta is the angle of inclination = 8 degrees

Torque T = 4Nm

Substitute the given values and get F

4 = F(0.09)sin8

4 = 0.0125F

F = 4/0.0125

F = 320N

Hence the magnitude of the force required when the force is applied at 8 degrees to the wrench is 320N

7 0
3 years ago
Two 1.9 kg masses are 1.1 m apart (center to center) on a frictionless table. Each has + 9.6 μC of charge.
Anni [7]

Answer:

F= 0.6 N

Explanation:

Fe(electrical force)=k q1q2/r^2

    k=9*10^9\\q1=-9.6 *10^-6 C\\q2= -9.6*10^-6 C\\r= 1.1m

So,    

        F=\frac{9*10^9*-9.6 *10^-6 C* -9.6*10^-6 C}{1.1^2}

         F= 0.6 N

5 0
3 years ago
Which of these letters is the symbol for current in equations A: c B: i C: r D: t
True [87]
  Answer:  [B]:  The letter, "<em /> I " ; for current;  in units of "Amps" .
__________________________________________________
4 0
3 years ago
a baby carriage is sitting at the top of a hill that is 21 m high. the carriage with the baby has a mass of 1.5 kg. the carriage
Serga [27]
Height of baby carriage from ground = 21m

Mass of carriage with baby = 1.5 kg

The carriage has potential energy by virtue of its height.

Potential energy = mgh = 1.5×10×21 = 315 J

Hence, potential energy of the carriage is 315 Joule.
7 0
3 years ago
A ____(concave, convex) mirror is used to collect light in a reflecting telescope
kati45 [8]
Im pretty sure its Concave.
4 0
3 years ago
Read 2 more answers
Other questions:
  • A spacecraft is launched from Earth toward the moon. Where will the spacecraft be when the gravitational forces acting on it are
    7·1 answer
  • In the graph, which two regions show the particle undergoing zero acceleration and negative acceleration respectively?
    11·1 answer
  • spring stretches by 21.0 cm when a 135 N object is attached. What is the weight of a fish that would stretch the spring by 43.9
    6·1 answer
  • The electric cell made _____ of currents possible.
    9·2 answers
  • HELP ASAP!!! What was Johann Dobereiner’s contribution to the development of the periodic table?
    11·2 answers
  • A negative charge of - 2.0 C and a positive charge of 3.0 C are separated by 72 m. What is the force
    8·1 answer
  • What is potential difference??. Please give a detailed explanation. ​
    10·1 answer
  • De las ondas electromagnéticas, se puede afirmar que:
    14·1 answer
  • Someone please help me!! See PDF to help
    13·2 answers
  • If a 20 N block experiences a force of kinetic friction of 8.0 N
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!