subject
Physics, 19.07.2019 10:40 ashlon98

Electromagnets are created by a. applying a charge to a magnetic material, wrapped in an insulator, which creates an electromagnetic field around the magnet. b. covering a magnet with insulation and applying an alternating electrical current to the magnet. c. twisting a ferromagnetic material, wrapping in an insulator, and applying a direct current to the coil d. wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 02:00
Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?
Answers: 3
question
Physics, 22.06.2019 08:00
The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato
Answers: 3
question
Physics, 22.06.2019 08:50
The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?
Answers: 2
question
Physics, 22.06.2019 11:30
You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?
Answers: 2
You know the right answer?
Electromagnets are created by a. applying a charge to a magnetic material, wrapped in an insulator,...
Questions
question
Mathematics, 11.11.2019 04:31
question
Mathematics, 11.11.2019 04:31
question
History, 11.11.2019 04:31
question
History, 11.11.2019 04:31
Questions on the website: 13722360