Chemistry, 18.07.2019 02:30 PLEASEHELP4528
An electric motor is connected to a battery. the current flows through brushes to a commutator ring, which is attached to an electromagnet turning through a permanent magnetic field. what is the purpose of the commutator ring? a. it periodically reverses the current flow through the electromagnet. b. it turns the electromagnet in the opposite direction. c. it allows mechanical energy to be converted into electrical energy. d. it keeps the electromagnet from losing its magnetism.
Answers: 1
Chemistry, 22.06.2019 16:40
The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates
Answers: 3
An electric motor is connected to a battery. the current flows through brushes to a commutator ring,...
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