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
earnstyle [38]
3 years ago
15

One hundred turns of insulated copper wire are wrapped around an iron core of cross-sectional area 0.100m2. As the magnetic fiel

d along the coil axis changes from 0.5 T to 1.00T in 4s, the voltage induced is:
Physics
1 answer:
bagirrra123 [75]3 years ago
6 0

Answer:

The voltage induced in the coil  is 1.25 V.

Explanation:

Given;

number of turns, N = 100 turns

cross sectional area of the copper coil, A = 0.1 m²

initial magnetic field, B₁ = 0.5 T

final magnetic field, B₂ = 1.00 T

duration of change in magnetic field, dt = 4 s

The induced emf in the coil is calculated as;

emf = -N\frac{\delta \phi}{\delta t} \\\\emf = - N (\frac{\delta B}{\delta t}) A\\\\emf = -N (\frac{B_1 -B_2}{\delta t} )A\\\\emf = N(\frac{B_2-B_1}{\delta t} )A\\\\emf = 100(\frac{1-0.5}{4} )0.1\\\\emf = 1.25 \ Volts

Therefore, the voltage induced in the coil  is 1.25 V.

You might be interested in
A closed system:
adoni [48]
The answer is b i just did the test
3 0
2 years ago
What happens to Earth’s plates during an earthquake?
vazorg [7]

A) Claim 1: Plates move, which can cause earthquakes.

Explanation:

The Plate Tectonic Theory proves the claim of  plate move, causing earthquakes.

This theory states that the earth’s crust along with the uppermost mantle is formed of several thin but large surfaced rigid patch work of plate-like structures called tectonic plates.  

There are about 15 large slabs on the earth’s outer surface and constitutes the lithosphere. Lithosphere of the earth is represented by the oceanic and continental crust layer and the uppermost mantle layer.

These plates move or slide relative with each other. These plates form divergent, convergent, or transform boundaries. Slips or faults along these boundaries forms subduction zones leading to great stress. This prevents normal gliding motion resulting in earthquakes.  

4 0
3 years ago
(6.9 * 10-6)(770 * 102)
meriva

Answer:

4948020

Explanation:

(6.9*10-6)(770*102)

<u>Multiply  6.9  by  10 . </u>

( 69 − 6 ) ( 770 ⋅ 102 )

<u>Subtract  6  from  69 . </u>

63 ( 770 ⋅ 102 )

<u>Multiply  770  by 102 . </u>

63 ⋅ 78540

<u>Multiply  63  by  78540 . </u>

4948020

5 0
3 years ago
What did kind of energy did the ruler gain when you bent it with your left hand? why?
Alex787 [66]

Answer:

potential energy

Explanation:

3 0
3 years ago
Read 2 more answers
How would you determine the volume of an irregularly shaped object such as a paper clip?
zheka24 [161]

Explanation:

Take a measuring cylinder and fill it with a certain amount of water. Measure this amount of water.

Place the paper clip in the filled measuring cylinder. You will notice that the water level has gone up. When we place the paper clip in the cylinder the volume of the paper clip gets added to the volume that was present in the cylinder.

The volume of the paper clip will be the final volume of water with the paper clip - The initial volume of water without the paper clip.

Any irregularly shaped object's volume can be determined by this method.

3 0
3 years ago
Other questions:
  • Weight is a force that depends on mass and: *
    11·2 answers
  • Find the resultant of an easterly force of 100 N and a southeast force of 80 N acting at 65 degrees to the 100 N force
    10·1 answer
  • Which phenomenon occurs when the moon and Earth are aligned with the sun? A. Retrograde motion B. Solstice C. Equinox D. Eclipse
    15·1 answer
  • What is the critical angle of a light beam passed from a medium (n=2) to a medium (n=1.2)?
    14·1 answer
  • It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). What is the angular speed o
    8·1 answer
  • A subatomic particle X spontaneously decays into two particles, A and B, each of rest energy 1.40 × 10^2 MeV. The particles fly
    6·1 answer
  • Please help me ;3 (ALSO REMEMBER IT SAYS SELECT TWO)
    6·2 answers
  • Choose the incorrect statement about the proton: Group of answer choices The proton has the atomic mass of 1 amu The proton has
    15·1 answer
  • As crust forms at the mid-ocean ridge, it gets pushed away from the ridge as newer crust forms. What is true about crust that fo
    13·2 answers
  • What happens to heat energy after an object is cooled down lolololol asking for my bff
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!