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
VikaD [51]
3 years ago
12

A 8.61-cm long solenoid consists of 677 turns of a 1.46-cm diameter circular coil. The total resistance of the coil is 0.684 \Om

egaΩ. Calculate the energy stored in the magnetic field of the solenoid when 0.728 Volts is applied across the solenoid leads. Give your answer in units of milliJoules.
Physics
1 answer:
hoa [83]3 years ago
6 0

Answer:

The energy stored in the magnetic field of the solenoid is 0.633 mJ.

Explanation:

Given that,

Length = 8.61 cm

Number of turns = 677

Diameter = 1.46 cm

Resistance = 0.684 Ω

emf = 0.728 V

We need to calculate the energy stored in the magnetic field

Using formula of inductance

L=\dfrac{\mu_{0}N^2A}{l}

Where, N = number of turns

A= area

I = Current

Put the value into the formula

L=\dfrac{4\pi\times10^{-7}\times677^2\times\pi(\times0.73\times10^{-2})^2}{8.61\times10^{-2}}

L=1.119\times10^{-3}\ H

We need to calculate the current

Using ohm's law

I=\dfrac{V}{R}

I=\dfrac{0.728}{0.684}

I=1.064\ A

We need to calculate the stored energy

Using formula of store energy

E=\dfrac{1}{2}LI^2

Put the value into the formula

E=\dfrac{1}{2}\times1.119\times10^{-3}\times(1.064)^2

E=0.633\times10^{-3}\ J

E=0.633\ mJ

Hence, The energy stored in the magnetic field of the solenoid is 0.633 mJ.

You might be interested in
Worth 25 points on my exam
I am Lyosha [343]
  • Initial velocity=20m/s
  • Final velocity=0m/s(As the car stops)
  • Acceleration=-8m/s^2
  • Distance=s=26m

We need to verify the thrid equation of kinematics here

\\ \tt\longmapsto v^2-u^2=2as

\\ \tt\longmapsto 20^2=2(-8)s

\\ \tt\longmapsto 400=-16s

\\ \tt\longmapsto s=|400/-16|

\\ \tt\longmapsto s=25m

The squirrel has a good luck ,Car gets stopped just 1m away from the squirrel .

7 0
2 years ago
Read 2 more answers
If you designed a rollercoaster, how might you design it? Would you have friction?
kvasek [131]
Yes, because you would need friction to slow down the rollercoaster to a stop. 
4 0
3 years ago
I will fan and give 2 medals!!!!!!
Maksim231197 [3]
<span> Corona </span>

<span>I.                  </span>Rare gaseous envelope

<span>II.              </span>Irregular pearly glow

<span>III.          </span>Total solar eclipse

<span>IV.             </span>Surrounds darkened moon

<span>V.                 </span>Caused by diffraction

<span> Solar Prominence </span>

<span>I.                  </span>loop shape

<span>II.              </span>large bright gaseous

<span>III.          </span>luminous hydrogen gas

<span>IV.             </span>rises above chromospheres

<span>V.                 </span>anchored to surface (sun’s surface)

<span> Solar Flare </span>

<span>I.                  </span>Intense High-energy

<span>II.              </span>Causes electromagnetic disruptions

<span>III.          </span>In solar atmosphere

<span>IV.             </span>Varies in brightness

<span>V.                 </span>Emits radiation 

<span> Sunspots </span>

<span>I.                  </span>Surface dark spots

<span>II.              </span>Strong magnetic fields

<span>III.          </span>Solar magnetic storms

<span>IV.             </span> Visible through telescope 

<span>V.                 </span>Cooler than photospheres

I did this in class I got 100%

7 0
2 years ago
A car accelerates uniformly from rest to a speed of 10m/s. Calculate its acceleration
Maurinko [17]

Answer:

Give four examples of landforms where both the water and the land around it are flat.

Explanation:

8 0
2 years ago
The image formed by a plane mirror is _____.
Thepotemich [5.8K]
The image formed by a plane mirror is virtual, upright and the same size with the actual object. The upright image of an object in a plane mirror is can be found on the other side of the mirror which is why it is also virtual. 
4 0
3 years ago
Other questions:
  • A car traveling at a constant speed travels 1000 feet in 12 seconds . In miles , how far will this car travel in 4 hours
    5·1 answer
  • Please Help!!!
    11·2 answers
  • In the periodic table of elements, Au stands for the element_____________, after the the Latin word "aurum."
    14·1 answer
  • Water flows through a water hose at a rate of Q1 = 860 cm3/s, the diameter of the hose is d1 = 1.85 cm. A nozzle is attached to
    11·1 answer
  • if large amount of heat are transferred to a solid, what will probably happen to the state of the solid?
    10·2 answers
  • In which position would an object have a greater amount of potential energy
    6·2 answers
  • Describe what happens to the gravitational force when the Sun, Earth and Moon<br> are in a line.
    12·1 answer
  • The famous cliff divers of Acapulco leap from a perch 35 m above the ocean. How fast are they moving when they reach the surface
    11·1 answer
  • A6 kg bag of rice is on the top shelf at a grocery store.
    9·2 answers
  • 1. Density = 13.5 g/mL<br> Mass = 151 grams<br> Volume =<br> What is the volume
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!