Which best describes the steps involved in the operation of an electric generator?
the electr...
Physics, 09.09.2019 23:30 jgcugucgucg
Which best describes the steps involved in the operation of an electric generator?
the electric current passes from the power source, through the brushes, and into the commutator.
the electric current passes from the brushes, through the slip rings, and to the collection device.
the electric current passes from the slip rings, through the brushes, and to the collection device.
the electric current passes from the commutator, through the brushes, and into the power source.
Answers: 2
Physics, 22.06.2019 03:50, cyberdac01
Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
Answers: 1
Physics, 22.06.2019 09:00, perezsamantha3oqr0za
As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy
Answers: 2
Physics, 22.06.2019 10:30, markfaerman5408
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
Answers: 3
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