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
777dan777 [17]
3 years ago
13

A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic fie

ld that increases its magnitude at a constant rate from 2.0 T to 6.0 T in 2.0 s. If the coil has a total resistance of 0.40 Ω, what is the magnitude of the induced current
Physics
1 answer:
Nutka1998 [239]3 years ago
5 0

Answer:

i = 0.5 A

Explanation:

As we know that magnetic flux is given as

\phi = NBA

here we know that

N = number of turns

B = magnetic field

A = area of the loop

now we know that rate of change in magnetic flux will induce EMF in the coil

so we have

EMF = NA\frac{dB}{dt}

now plug in all values to find induced EMF

EMF = (20)(50 \times 10^{-4})(\frac{6 - 2}{2})

EMF = 0.2 volts

now by ohm's law we have

current = \frac{EMF}{Resistance}

i = \frac{0.2}{0.40} = 0.5 A

You might be interested in
A guitar string vibrates 600 times in 2 seconds.
vazorg [7]

frequency is equal to number of oscillations or vibrations upon time

therefore,

check picture

4 0
2 years ago
Vitamins and iron are nutrients that provide energy to the human body.<br> A true<br> B false
SIZIF [17.4K]
I think it is A. but then you can also produce your own energy
4 0
2 years ago
Free point cuz i cewl like dat‍♀️‍♂️
DedPeter [7]
Yes thank u teehee




.................... x
8 0
2 years ago
Read 2 more answers
Margy is trying to improve her cardio endurance by performing an exercise in which she alternates walking and running 100.0 m ea
madreJ [45]
In order to answer this exercise you need to use the formulas

 S = Vo*t + (1/2)*a*t^2

Vf = Vo + at

The data will be given as

Vf = final velocity = ?

Vo = initial velocity = 1.4 m/s

a = acceleration = 0.20 m/s^2

s = displacement = 100m

And now you do the following:

100 = 1.4t + (1/2)*0.2*t^2

t = 25.388s

and

Vf = 1.4 + 0.2(25.388)

Vf = 6.5 m/s

So the answer you are looking for is 6.5 m/s
7 0
3 years ago
Read 2 more answers
The distance between two stations is 1995 Km. How much time will it take to cover the distance at an average speed of 19KM/hour
Flura [38]
105 hours or 4.375 days
5 0
3 years ago
Other questions:
  • The California sea lion is capable of making extremely fast, tight turns while swimming underwater. In one study, scientists obs
    6·1 answer
  • 1. A meteorologist describes a tropical storm as traveling northwest at 50 mi/h. Which attribute of the storm's motion has the m
    7·1 answer
  • The diameter of Earth (to two significant figures) is 7900 miles. Calculate its circumference.
    8·1 answer
  • If the stopping potential of a metal when illuminated with a radiation of wavelength 480 nm is 1.2 V, find (a) the work function
    7·1 answer
  • The electric field strength E is measured as:
    11·1 answer
  • What is the energy (in J) stored in the 14.0 µF capacitor of a heart defibrillator charged to 6.90 ✕ 103 V?
    9·1 answer
  • What do you know about water
    6·1 answer
  • Which theory explains that cussing in front of your grandparents or hugging a stranger would be okay to you based on social cont
    9·1 answer
  • A beaker of boiling water stops boiling and eventually reaches room
    14·2 answers
  • Uncertainty in 21.0 C is<br> A. 0.1<br> B. 0.2<br> C. 0.05
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!