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
Inessa05 [86]
3 years ago
15

A 0.110 m radius, 506-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a

uniform magnetic field. (This is 60 rev/s.) Find the magnetic field strength needed to induce an average emf of 10,000 V. 519.893 Incorrect: Your answer is incorrect.
Physics
1 answer:
8090 [49]3 years ago
3 0

Answer:

Explanation:

Expression for emf induced = 1 /2 B n r²ω where B is magnetic field , r is radius of the coil and ω is angular velocity of rotation , n is no of turn .

ω = 2πf = 2π x 60 = 120 π   ; where f is frequency of rotation .

emf induced =  1 /2 B r²x 120π x n

Putting the given values

10000 = .5 x B x .11² x 120 x 3.14 x 506

B = 8.67 T .

You might be interested in
A 19 nC charge is moved in a uniform electric field. The electric field does 5.3 μJ of work as the charge moves from point A to
Marizza181 [45]

Answer:

The potential difference between points A and B is 278.95 volts.

The potential difference between points B and C is -642.10 volts.

The potential difference between points A and C is -363.15 volts.

Explanation:

Given :

Charge of the particle, q = 19 nC = 19 x 10⁻⁹ C

Work is done to move a charge from point A to B, W₁ = 5.3 μJ

Work done to move a charge from point B to C, W₂ = -12.2 μJ

Let V₁ be the potential difference between point A and B, V₂ be the potential difference between point B and C and V₃ be the potential difference between point A and C.

The relation between work done and potential difference is:

W = qV  

V = W/q    ....(1)

Using equation (1), the potential difference between points A and B is:

V_{1}=\frac{W_{1} }{q}

Substitute the suitable values in the above equation.

V_{1} =\frac{5.3\times10^{-6} }{19\times10^{-9} }

V₁ = 278.95 V

Using equation (1), the potential difference between points B and C is:

V_{2}=\frac{W_{2} }{q}

Substitute the suitable values in the above equation.

V_{2} =\frac{-12.2\times10^{-6} }{19\times10^{-9} }

V₂ = -642.10 V

The potential difference between points A and C is:

V₃ = V₁ + V₂

V₃ = 278.95 - 642.10

V₃ = -363.15 V

8 0
3 years ago
Select all that apply. Which of the following are characteristics of acids? contain hydroxide ion or produce it in a solution ta
julia-pushkina [17]
These are the characteristics that apply:

 - In a solution taste sour: which is consequence of the H+ concentration.

- Corrode metals: the H+ ion reacts with the metal producing a salt and water

-Produce hydronium ion in solution: as per the Bronsted - Lowry definition an acid is a substance that donates a proton, H+. This proton will react with H2O to form H3O+ (hydronium), as per this scheme: 

HA + H2O --> A(-) + H3O(+)
5 0
3 years ago
Define the strip attached to the magnet?​
Aleonysh [2.5K]

Answer:

A stripe of magnetic information that is affixed to the back of a plastic credit or debit card.

5 0
3 years ago
What’s the most distant object in the solar system
Scrat [10]

Answer:

pluto

Explanation:

i had the same question

7 0
3 years ago
Read 2 more answers
The velocity of an object includes its speed and____?
mr_godi [17]

it includes an objects speed and direction

6 0
3 years ago
Other questions:
  • How do I determine valence electrons from the periodic table
    15·2 answers
  • Using the diagram below, calculate the PE and KE of the ball at the top, middle, and bottom of a drop. SHOW YOUR WORK!!
    7·1 answer
  • A _____ map provides information about how and when rocks formed in a particular area.A.contourB.geologicC.topographic
    11·1 answer
  • It is advised not to hold the thermometer by the bulb while reading it
    12·1 answer
  • The ocean’s surface temperatures vary with time of year and a. latitude. c. seasons. b. longitude. d. moon phases.
    15·2 answers
  • Five multiple choice science questions.
    12·1 answer
  • A distressed car is rolling backward, downhill at 3.0 m/s when its driver finally manages to
    14·1 answer
  • When did the ball fly farther—when it hit the moving bat or the bat that did not move?
    10·1 answer
  • You want to determine whether the mass of an object attached to a parachute affects the time it takes to fall to the ground. In
    15·1 answer
  • What is the magnitude of the electric field at the dot in the figure? (figure 1)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!