A Commutator Is A Device That Reverses The Flow Of Current Through A(n)

1)A Commutator Is A Device That Reverses The Flow Of Current Through A(n)?
a. Armature
b. Electrochemical Cell
c. Meter
d. Galvanometer

2)A Turbine...
a. Allows current to flow from the armature to the rest of the circuit
b. Is turned by the force of a magnetic field
c. can change the voltage of an alternating current
d. turns the armature of a generator

3) Alternating current allows efficient power transmission because ...
a. its voltage can be stepped up and stepped down
b. it carries only low voltages
c. it doesn't require transformers like direct currents
d. its generating plants are small and close together

4)An electrochemical cell is connected to a circuit by its...
a. slip rings
b. brushes
c. electrolytes
d. terminals

5) Energy...
a. was discovered by Nikola Tesla
b. is the ability to move or change an object
c. is equal to current multiplied by voltage
d. is measured in units of kilowats

a
d
a
d
b

In the time it took you to type this you could have Googled most of it.