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
crimeas [40]
3 years ago
15

A solenoid made from 600 turns of wire on a cylindrical form 2cm in diameter and 10cm long has a current of 3 amps on it. Find t

he strength of the magnetic field on the axis of the coil. If the current in the solenoid is interrupted and falls to zero in .001 seconds, find the voltage induced across the coil
Physics
2 answers:
postnew [5]3 years ago
8 0

Answer:

0.0226 T 4.25784 volt

Explanation:

Length of the solenoid = 10 cm =0.1 m

Diameter of the solenoid d=2 cm , so radius r=\frac{d}{2}=\frac{2}{1}=1cm=0.01m

Number of turns N = 600, so number of turns per unit length n=\frac{N}{L}=\frac{600}{0.1}=6000

Current = 3 A

Magnetic field due to solenoid B=\mu _0ni=4\pi \times 10^{-7}\times 6000\times 3=0.02261T

Area A=\pi r^2=3.14\times 0.01^2=3.14\times 10^{-4}m^2

Emf induced is given by e=-NA\frac{dB}{dt}=-600\times 3.14\times 10^{-4}\frac{(0-0226)}{0.001}=4.25784V

svp [43]3 years ago
4 0

Answer:

0.0226 T, 7.096 V

Explanation:

N = 600

l = 10 cm = 0.1 m

i = 3 A

diameter = 2 cm

The magnetic field on the axis is given by

B = μo x n x i

where, n be the number of turns per unit length, i be the current and μo be the permeability of free space.

n =\frac{N}{l}= \frac{600}{0.1}=6000

B=4\times 3.14 \times  10^{-7}\times 6000\times 3

B = 0.0226 T

time taken to decrease the magnetic field to be zero is t = 0.001 second

Let e be the amount of voltage induced.

According to the Faraday's law of electromagnetic induction

e = rate of change of magnetic flux

e=\frac{d\phi }{dt}=A\frac{dB}{dt}

where, A be the area of coil

A = 3.14 \times r^{2}= 3.14 \times 0.01\times 0.01=3.14\times 10^{-4}m^{2}

So, induced voltage

e=\frac{3.14\times 10^{-4}\times 0.0226 }{0.001}=7.096\times 10^{-3}V\\

e = 7.096 mV

You might be interested in
A converging lens of focal length 20 cm is placed in contact with, and to the left of, a diverging lens of focal length 30 cm. I
scZoUnD [109]

Answer:

Magnification will be equal to 3

Explanation:

We have given focal length of the converging lens F_1=20cm

Focal length of the diverging lens F_2=30cm

Object is placed 40 cm to the length of the converging lens d = 40 cm

Combination of the focal length will be equal to

\frac{1}{F}=\frac{1}{F_1}+\frac{1}{F_2}

\frac{1}{F}=\frac{1}{20}+\frac{1}{-30}=\frac{1}{20}-\frac{1}{30}=\frac{1}{60}

F = 60 cm

So combination of the focal length will be 60 cm

Magnification is given by

M=\frac{F}{F-d}=\frac{60}{60-40}=3

So magnification will be equal to 3

3 0
3 years ago
A rock from space in Earth's Atmosphere would be considered?
Gnesinka [82]

Answer:

A meteor mate

Explanation:

hope this helps

8 0
3 years ago
G a person of mass 100 kg is riding an elevator which was initially moving up with a velocity of 3 m/s. over a distance of 4 m t
andriy [413]
E=mc² where c is speed of the light
3 m/s more andmore less than speed of the light. So mass of the person still 100 kg
3 0
2 years ago
The free body diagram shows a box being pulled to the left up a 25-degree incline
Greeley [361]
The question is incomplete but still I answer to assume your thinking.
The picture is attached below!.
Here,
F is the force with which you pull up the incline.
N is the normal force.
w is the weight acting downward.
Axis are mentioned in the attached picture.
Concept:
You can see there is no movement of object in the y-direction that means acceleration is zero in y-direction, sum of all the forces in y-direction equal to zero.
According to newton second law,
<span>∑ F = ma
</span>As, acceleration is zero in y-direction, so right hand side is zero in the above equation.
<span>∑ F = 0</span>
N-wcosθ=0 
N= m*g*cos25°
N= m*(9.8)*(0.9063)
N= 8.8817*m
By putting the value of mass(m)(not given in the question) you will get the answer.
Hopefully, this is the answer of your question.


5 0
3 years ago
Read 2 more answers
In a star nuclear fusion occurs in the
Anika [276]

Answer:

C. Core

Explanation:

8 0
2 years ago
Other questions:
  • Which statement best describes the direction of the buoyant force on any object?
    8·2 answers
  • Dos masas están conectadas por una cuerda ligera que pasa por una polea sin rozamiento. Determine la aceleración de las masas y
    7·1 answer
  • Mary and Jim find an unusual rock in their backyard. Which question about the rock cannot be answered through scientific investi
    15·2 answers
  • A car is traveling at 20 m/s. It takes the car 120s to go from one intersection to a second. What was the displacement of the ca
    11·1 answer
  • Solar winds have an influence all the way to about 160 AU from the Sun. About how many kilometers is that? 24,000,000,000 km 48,
    7·2 answers
  • A capacitor is discharged through a 30.0 Ω resistor. The discharge current decreases to 26.0% of its initial value in 3.00 ms .
    8·1 answer
  • How many mean free paths thick must a shield be designed in order to attenuate an incident neutron beam by a factor of 1000?
    6·1 answer
  • why it's impossible for baseball players to make sharp turns when moving form base to base? explain using Newton 1st law "object
    7·1 answer
  • Please help me I have to send for my teacher​
    14·1 answer
  • Vanessa made a list comparing the differences between the outer coverings in plants and animals, but she made a mistake. Read th
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!