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
vodomira [7]
2 years ago
15

A copper wire loop has a circular shape, with a radius a (see below). The loop is put perpendicularly to the uniform magnetic fi

eld, which changes with time according to the next function (α and β are both constant and positive): B = α + βt. Is there an electromotive force induced in the loop? If yes, calculate its value and find its direction. If not, explain why there is no electromotive force induced in the loop.
Physics
1 answer:
Luda [366]2 years ago
5 0

Answer:

 fem = -A β

Explanation:

Faraday's law gives the induced electromotive source (emf)

           fem = - \ \frac{d \phi_B }{dt}

the magnetic flux is

           \phi_B = B. A = B A cos θ

the bold are vectros.  In this case the normal to the ring is parallel to the magnetic field so the angle is zero  cos 0 = 1, also the area of the ring is constant

             fem = -A  \frac{dB}{dt}

we carry out the derivative of the function B = α + β t

            fem = -A β

so we see that there is an electromotive force in the ring.

You might be interested in
Which of the following is not an example of work?
Ivahew [28]

Answer:

3 a is the ans i think so ....

7 0
2 years ago
94 points if you hurry <br><br><br><br> The phase of matter with the least kinetic energy:
OlgaM077 [116]

Answer:

solid

Explanation:

6 0
2 years ago
in the diagram, the solid eventually becomes a gas. what will happen to bring the substance from a solid to a gas?
Gennadij [26K]
Sublimation is the answer

5 0
3 years ago
What is the reason eclipses do not happen every full moon and new moon
ioda
The answer is D, hope this helped!
6 0
2 years ago
Let's talk skateboard velocity how much mean when you get my going down a 3 x 3" metal ramp. No posers are allowed to answer th
denpristay [2]

Answer:

quarte embri Oslo

Explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Which stage of the cell cycle involves the division of the cytoplasm?
    6·2 answers
  • Need help in General Science II please help FAST!!!!!!!!!!!!!!!!!!
    7·1 answer
  • 60 POINTS ANSWER CORRECTLY
    13·2 answers
  • What can scientist learn from studying sedimentary rocks?
    5·2 answers
  • How does increased pressure result in the formation of a mineral?
    11·1 answer
  • 5. The starter phase of a fitness program is important because it A. gives a person the opportunity to discover the exercises th
    7·1 answer
  • What does action force mean
    13·2 answers
  • a motorcycle is trying to leap across the canyon by driving horizontally off a cliff 38 m/s. Ignoring air resistance, find the s
    11·1 answer
  • A_ is a cut made through the wood
    11·2 answers
  • 1. A wave with a frequency of 10 Hz has a wavelength of 3 meters. At what
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!