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
Ber [7]
3 years ago
6

A coil of 160 turns and area 0.20 m2 is placed with its axis parallel to a magnetic field of initial magnitude 0.40 T. The magne

tic field changes uniformly from 0.40 T in the +x direction to 0.40 T in the -x direction in 2.0 s. If the resistance of the coil is 16 Ω, at what rate is power generated in the coil?
Physics
1 answer:
ser-zykov [4K]3 years ago
8 0

Answer:

The rate at which power is generated in the coil is 10.24 Watts

Explanation:

Given;

number of turns of the coil, N = 160

area of the coil, A = 0.2 m²

magnitude of the magnetic field, B = 0.4 T

time for field change = 2 s

resistance of the coil, R =  16 Ω

The induced emf in the coil is calculated as;

emf = dΦ/dt

where;

Φ is magnetic flux = BA

emf = N (BA/dt)

emf = 160 (0.4T x 0.2 m²)/dt

emf = 12.8 V/s

The rate power is generated in the coil is calculated as;

P = V²/ R

P = (12.8²) / 16

P = 10.24 Watts

Therefore, the rate at which power is generated in the coil is 10.24 Watts

You might be interested in
Explain why people have different skin colors?
stiks02 [169]

I think it because of UV rays ultra violet ray which can make their colors different

5 0
3 years ago
in the primitive yo-yo apparatus (figure 1), you replace the solid cylinder with a hollow cylinder of mass m , outer radius r ,
kirza4 [7]

The magnitude of the downward acceleration of the hollow cylinder is 6m/s^2.

Z = I α

T.R =1/2 M ( R^{2} + (R/2)^{2} )α

T.R = 1/2M 5R^{2}/4 α

T = 5Ma/8

Mg - T = Ma

Mg -  5Ma/8 =  Ma

Mg= 5Ma/8 +  Ma = 13Ma / 8

acceleration = 8g/13 = 6 m/s^2

The rate at which an object's velocity with respect to time changes is called its acceleration. The direction of the net force imposed on an item determines its acceleration in relation to that force. According to Newton's Second Law, the magnitude of an object's acceleration is the result of two factors working together

The size of the net balance of all external forces acting on that item is directly proportional to the magnitude of this net resultant force; the magnitude of that object's mass, depending on the materials from which it is built, is inversely related to its mass.

Learn more about acceleration here:

brainly.com/question/2303856

#SPJ4

4 0
1 year ago
What is Newton’s second law of motion
ddd [48]

"<em>F = dP/dt. </em> The net force acting on an object is equal to the rate at which its momentum changes."

These days, we break up "the rate at which momentum changes" into its units, and then re-combine them in a slightly different way.  So the way WE express and use the 2nd law of motion is

"<em>F = m·A.</em>  The net force on an object is equal to the product of the object's mass and its acceleration."

The two statements say exactly the same thing. You can take either one and work out the other one from it, just by working with the units.

8 0
3 years ago
Read 2 more answers
Importance of a cell​
Anika [276]

Explanation:

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions.

3 0
2 years ago
What are the two major characteristics that change when air is heated and cooled ? How do these characteristics change the movem
sleet_krkn [62]
Two major characteristics that change when air is heated and cooled is the density and the direction of the air flow. They change the movement of the air by heated air rises and cooled air doesn't. 
8 0
3 years ago
Other questions:
  • What percent of all bolts fire within a cloud
    14·1 answer
  • A bullet is fired straight up from a gun with a
    14·2 answers
  • How do scientist analyze empirical evidence?
    15·1 answer
  • A lamp has a current of 2.17 A. In hours, how long does it take for 1 mole of electrons to pass through the lamp?
    5·1 answer
  • When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees
    9·1 answer
  • How does a battery work?
    13·1 answer
  • An object with a mass of 1500kg accelerates 10.0m/s when unknown force is applied to it. What is the amount of force?
    9·2 answers
  • 0.000236 kg has how many<br> significant figures?
    10·1 answer
  • The event in the life of a star that begins its expansion into a giant is Group of answer choices almost all the hydrogen in its
    11·1 answer
  • An object is moving with a force 30N then hits a wall to a stop in 0.5s.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!