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
seraphim [82]
3 years ago
5

What current is required in the windings of a long solenoid that has 420 turns uniformly distributed over a length of 0.575 m in

order to produce inside the solenoid a magnetic field of magnitude 4.22×10−5 T? The permeablity of free space is 1.25664 × 10 Tm/A.
Physics
1 answer:
WARRIOR [948]3 years ago
4 0

Answer:

The current in the solenoid=0.463 Ampere

Explanation:

Given:

Number of turns , N=420

Length of the solenoid=0.575 m

Magnitude of Magnetic Field,B=4.22\times10^{-5}\ \rm T

We know that the magnitude of the magnetic Field inside the solenoid is

B=\mu_0 ni

Where

  • \mu_0 is the permeability of free space.
  • n is the number of turns per unit length
  • i is the current

According to question

B=\mu_0 ni\\\\4.22\times10^{-5}=1.24664\times10^{-7}\times \dfrac{420}{0.575}\times i\\=0.463\ \rm Amp

Hence the current is calculated.

You might be interested in
In a pilot study to help train a group of data collectors who will evaluate childrens pain using a FACES rating scale, the resea
muminat

Answer:

Option c. Inter-rater Reliability

Explanation:

Here, the rating is done by a group of data collectors under training for evaluation children's pain on Faces scale which is a scale ranging from 0 to 10 with different expressions or faces with a happy face at 0 to a crying face at 10.

Also in Inter-rater Reliability, the relative consistency of a study or test is assessed and the extent to which different group members rated the same behavior, the consistency of which is evaluated.

Thus it can also be helpful in interviews, etc.

6 0
3 years ago
What is the smallest possible piece an element in broken down into my normal laboratory processes
lozanna [386]

answer would be: A. atom

8 0
3 years ago
Please help solving this physics question
sp2606 [1]
True
False
False.
True
True
False
4 0
3 years ago
Which, if any, of the following statements about electric field lines is/are true? A.The electric field is always perpendicular
jonny [76]
The electric field is always perpendicular to the surface outside of a conductor. TRUE

<span> If an electron were placed on an electric field line, it would move in a direction perpendicular to the field. FALSE, it would move in an anti-parallel direction because its charge is negative </span>
 
<span>Electric field lines originate on positive charge and terminate on negative charge. TRUE ; but they can also go to infinity </span>
 
It is possible for two electric field lines to cross each other.
<span> Usually FALSE; though technically possible at special points where field is zero. </span>
 
If an electron and a positron were in the presence of a very strong electric field, they would move away from each other.
<span> TRUE; one is positive, and one is negative. If the field is strong enough, the action of the field will overcome the mutual attraction between them </span>
 
It is not possible for the electric field to ever be zero. FALSE: it IS possible, inside a conductor for instance
   
If a proton were placed on an electric field line, it would move in a direction anti-parallel to the field.
<span> FALSE: being positive, it would move in the SAME direction as the field</span>ic 
8 0
3 years ago
What is displacement
saveliy_v [14]
This is what wiki says hope it helps
A displacement is a vector whose length is the shortest distance from the initial to the final position of a point P.[1] It quantifies both the distance and direction of an imaginary motion along a straight line from the initial position to the final position of the point.

A displacement may be also described as a 'relative position': the final position of a point (Sf) relative to its initial position (Si), and a displacement vector can be mathematically defined as the difference between the final and initial position vectors:
4 0
3 years ago
Read 2 more answers
Other questions:
  • Specific heat refers to the amount of heat required to change 1 gram of a substance by _______ degree(s) Celsius.
    12·2 answers
  • PLEASE HELPPPP ME WITH THIS
    14·1 answer
  • The electric field of a charge is defined by the force on what kind of particle?
    15·1 answer
  • What does a wave carry?<br> go
    9·2 answers
  • Approximate the field by treating the disk as a +6.1 C point charge at a distance of 21 cm Answer in units of N/C.
    10·1 answer
  • Which form of the law of conservation of energy describes the motion of the block when it slides from the top of the table to th
    9·1 answer
  • An capacitor consists of two large parallel plates of area A separated by a very small distance d. This capacitor is connected t
    11·1 answer
  • A charged particle having mass 6.64 x 10-27 kg (that of a helium atom) moving at 8.70 x 105 m/s perpendicular to a 1.30-T magnet
    14·1 answer
  • 3. A 900N mountain climber scales a
    8·1 answer
  • 4. A disobedient student dropped his Physics textbook (mass 0.1kg) from the window (15m above the ground). How fast was it going
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!