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
Reil [10]
3 years ago
13

What happens to an electric current produced from an electromagnet when the direction of the magnetic field changes?

Physics
2 answers:
aev [14]3 years ago
8 0

Answer;

C. The direction of the electric current changes.

Explanation;

An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. The poles of an electromagnet can even be reversed by reversing the flow of electricity.

An electromagnet works because an electric current produces a magnetic field. The magnetic field produced by an electric current forms circles around the electric current

GrogVix [38]3 years ago
7 0
An electromagnet is and electric magnetic field present to a coil of copper around it that attracts metal and other electricity. Based in your question about the changing of the direction of the current, I think the amount of electromagnetic field doesnt change but the polarity does.
You might be interested in
What is atmospheric pressure?
vichka [17]
The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure
6 0
2 years ago
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (60pts)
mr Goodwill [35]
The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.
So since the boat has a lower density than the water, it will float.
So the answer is choice B
3 0
3 years ago
What does the term "catastrophic event" mean to you
ozzi

Answer:

an event which took place which had such a significant impact.

Explanation:

6 0
3 years ago
Read 2 more answers
A 91.1 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.73 r
KIM [24]

Answer:

\omega_f = 1.08 rad/s

Explanation:

As we know that there is no external torque on the system of platform, banana and the monkey

so the angular momentum of the system will remains conserved

so here we can say

L_i = L_f

I_o\omega = (I_o + m_1r_1^2 + m_2r_2^2)\omega_f

here we know that

I_o = \frac{1}{2}mR^2

I_o = \frac{1}{2}(91.1)(1.61)^2 = 118.1 kg m^2

m_1 = 9.41 kg

r_1 = \frac{4}{5}(1.61) = 1.29 m

m_2 = 21.1 kg

Now from above equation

118.1(1.73) = (118.1 + 9.41(1.29^2) + 21.1(1.61^2))\omega_f

118.1(1.73) = 188.45\omega_f

\omega_f = 1.08 rad/s

8 0
3 years ago
The gravitational force
vivado [14]
<span>b. weakens as 1/d, where d is the distance between objects.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Please help step by step 15 points
    5·1 answer
  • A particle accelerates from rest at 5.7 m/s 2 . what is its speed 7.2 s after the particle starts moving? answer in units of m/s
    12·1 answer
  • Name 15 measurement instrument use in physic and their uses
    11·1 answer
  • A large box of mass M is moving on a horizontal floor at speed v0. A small box of mass m is sitting on top of the large box. The
    12·1 answer
  • List three things that can affect an objects resistance.
    9·1 answer
  • Three froces that would effect a boat
    5·1 answer
  • Activities that can help reduce the stress level in a family include A. exercising B. reading C. going for a walk D. all of the
    13·1 answer
  • The speed limit on Highway 85 is 65 mi/h. What is it in m/s?
    9·2 answers
  • You are looking at yourself in a plane mirror, a distance of 3 meters from the mirror. your brain interprets what you are seeing
    14·1 answer
  • Jake is helping Fin push a box at a constant velocity up an incline that makes an angle of 30.0° above the horizontal by applyin
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!