![subject](/tpl/images/cats/fizika.png)
Physics, 04.12.2020 23:10 kenziepickup
What is the role of the commutator in a DC generator?
A. It keeps the magnetic fields of the permanent magnet steady.
B. It keeps the electric current flowing in one direction.
O C. It causes the magnetic fields of the permanent magnets to
reverse.
D. It causes the electric current to constantly reverse its direction.
SUEN
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 16:30
In which scenario is the least amount of work done on a crate? a force of 120 n moves it 25 m. a force of 115 n moves it 26 m. a force of 130 n moves it 22 m. a force of 125 n moves it 27 m.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:00
Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 11:00
Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 13:00
Ways that industry and agriculture use physical properties to separate substances
Answers: 1
You know the right answer?
What is the role of the commutator in a DC generator?
A. It keeps the magnetic fields of the perman...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.04.2021 21:30
![question](/tpl/images/cats/es.png)
Spanish, 30.04.2021 21:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 30.04.2021 21:30
![question](/tpl/images/cats/istoriya.png)
History, 30.04.2021 21:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.04.2021 21:30
![question](/tpl/images/cats/en.png)
English, 30.04.2021 21:30
![question](/tpl/images/cats/istoriya.png)
History, 30.04.2021 21:30
![question](/tpl/images/cats/biologiya.png)
Biology, 30.04.2021 21:30
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 30.04.2021 21:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.04.2021 21:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/pravo.png)
Law, 30.04.2021 21:30