Physics, 20.03.2020 10:30 amirahpeters
A 2.4 mm -diameter copper wire carries a 37 A current (uniform across its cross section). Determine the magnetic field at the surface of the wire. Express your answer using two significant figures
Answers: 2
Physics, 22.06.2019 00:00
During physical science, ms. greene challenged her students to produce an energy transformation. james and jill wrapped a 4-inch nail with a coil of fifty turns of wire. they connected one end of the coil to one terminal of a knife switch. they connected the other terminal of the knife switch to the battery. finally, they connected the end of the coil to the other terminal of the battery. james held the tip of a 1-inch nail near the flat end of the 4-inch nail. jill closed the knife switch quickly and then opened it. the 1-inch nail was pulled toward the 4-inch nail. what is the best explanation of why the nail moved? a) electrical energy was converted to mechanical energy in the 1-inch nail. b) the 4-inch nail became an electromagnet and the magnetic force attracted the 1-inch nail. c) the electric current in the 4-inch nail was converted to mechanical energy in the 1-inch nail. d) the 4-inch nail had a positive charge and the 1-inch nail had a negative charge. opposites attracted.
Answers: 1
Physics, 22.06.2019 07:30
The slope of a velocity time graph over any interval of time gives the during that interval
Answers: 2
Physics, 22.06.2019 15:00
What happens when a rubber rod is rubbed with a piece of fur?
Answers: 1
Physics, 22.06.2019 18:00
Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
Answers: 1
A 2.4 mm -diameter copper wire carries a 37 A current (uniform across its cross section). Determine...
Biology, 03.02.2021 19:20
Mathematics, 03.02.2021 19:20
Computers and Technology, 03.02.2021 19:20
Mathematics, 03.02.2021 19:20
Mathematics, 03.02.2021 19:20
History, 03.02.2021 19:20
History, 03.02.2021 19:20
Mathematics, 03.02.2021 19:20
Mathematics, 03.02.2021 19:20
Social Studies, 03.02.2021 19:20
English, 03.02.2021 19:20
Mathematics, 03.02.2021 19:20
Business, 03.02.2021 19:20
Mathematics, 03.02.2021 19:20
English, 03.02.2021 19:20