DA EVERYTHING Flashcards
It is easy to be transferred over longer distances without much energy loss.
Alternating current
It can cause the change in direction of electric flow.
rotating magnets
What is the frequency of AC?
50 Hz or 60 Hz
What is the flow of current in AC?
Forward-backward periodically
It cannot be transferred over a very long distance.
Direct current
Direct current does not lose power. True or False?
False
It makes DC flow in a single direction.
Steady magnetism
DC flows in a _______________________.
single direction steadily
More solenoids, _________________.
stronger magnetism
A physical phenomenon produced by the motion of electric charge.
Magnetism
uses electromagnet to change electrical energy into mechanical energy.
Electric motor
Has all the same parts and an electric motor but does the exact opposite of a motor.
Generator
The switch in an electric motor that reverses the flow of current.
commutator
In a direct current, electrons move in a _____________ direction around the circuit, travelling from the _________ side of the power supply.
constant, opposite
It uses an electrolyte in the form of paste that does not leak; commonly used for portable devices.
Dry cell