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
Gekata [30.6K]
3 years ago
11

A long solenoid that has 1 170 turns uniformly distributed over a length of 0.420 m produces a magnetic field of magnitude 1.00

10-4 T at its center. What current is required in the windings for that to occur?
Physics
1 answer:
AysviL [449]3 years ago
6 0

I = 28.6mA.

The magnetic field in the center of a solenoid is given by:

B = μ₀NI/L

Clear I from the equation above, we obtain:

I = BL/μ₀N

With B = 1.00 x 10⁻⁴T, L = 0.42m, μ₀ = 4π x 10⁻⁷T.m/A  and N = 1170turns

I = [(1.00 x 10⁻⁴T)(0.42m)]/[(4π x 10⁻⁷T.m/A)(1170turns)]

I = 0.0286A

I = 28.6mA

You might be interested in
(f) What do you mean by: (i) 1 J energy (ii) 1 W power​
max2010maxim [7]

Explanation:

Watts are defined as 1 Watt = 1 Joule per second (1W = 1 J/s)

which means that 1 kW = 1000 J/s. A Watt is the amount of energy (in Joules) that an electrical device (such as a light) is burning per second that it's running.

3 0
3 years ago
Inside a television picture tube there is a build-up of electrons (charge of 1.602 × 10^–19 C) with an average spacing of 38.0 n
Brut [27]
The magnitude of electric field is produced by the electrons at a certain distance.

E = kQ/r²

where: 
E = electric field produced
Q = charge
r = distance
k = Coulomb Law constant 9 x10^9<span> N. m</span>2<span> / C</span><span>2

Given are the following:
Q = </span><span>1.602 × 10^–19 C
</span><span>r = 38 x 10^-9 m

Substitue the given:
E = </span>\frac{( 1.602 x 10^{-19} )( 9.0x10_{9} )}{(38x10^{-9}) ^{2} }

E = 998.476 kN/C


8 0
3 years ago
Read 2 more answers
What kind of energy does an unlit match have?
Oliga [24]

The type of energy that an unlit match has is potential energy.

5 0
3 years ago
Compute the velocity of light in calcium fluoride which has dielectric constant of 2.056 .​
Aleksandr [31]

Answer:

<h3>idl low presure but de 2.518 has a 6 divide 8 equal di. ko alam?</h3>
4 0
3 years ago
A color television tube generates some X-rays when its electron beam strikes the screen. What is the shortest wavelength of thes
Margaret [11]

Answer:  4.0024 x 10^ -11 m or 0.040024 nm

Explanation:

λ = h c/ΔE

λ = wave lenght

h = 6.626 x 10 ^ -34  m² kg /s  = planck constant

ΔE = 31 keV potential ( 1 keV = 1.6021 x 10^-16J)

c = velocity of light = 3 x 10⁸ m/s

substitute gives

λ  =    <u>6.626 x 10 ^ -34  m² kg /s x 3 x 10⁸ m/s</u>  = 4.0024 x 10^ -11 m

                 31 x 1.6021x10^-16 J

5 0
3 years ago
Other questions:
  • Why a boat cannot be made of solid steel.
    12·2 answers
  • A disturbance sends ripples across water in a tub. These ripples are an example of a rarefaction
    15·1 answer
  • Two nuclei join to form a larger nucleus during which process
    6·2 answers
  • Longitudinal waves travel through a series of ___ and ___ PlEASE HELP FAST!!!!!!
    7·1 answer
  • The power of motor is 50 w the motor drags a 2 object horizontally at a constant speed of 10m/s along a rough floor . What is th
    12·1 answer
  • A cube that has a volume of 1.00 m³ contains N distinguishable particles.
    8·1 answer
  • You travel from Point A to Point B to Point C. What is your
    9·2 answers
  • A woman of mass 50 kg is swimming with a velocity of 1.6 m/s. If she stops stroking and glides to a stop in the water, what is t
    8·1 answer
  • What is this question
    10·1 answer
  • In our Solar System, the inner planets are rocky because Choose one: A. warm temperatures in the inner disk caused the inner pla
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!