DC and AC sources

Question 1

voltage and current maintains in one direction

Answer 1

direct current (DC)

Question 2

voltage and current changes direction alternatively

Answer 2

alternating current (AC)

Question 3

continually changes in magnitude and periodically reverses in polarity. it can be produced by a generator called an alternator.

Answer 3

AC voltage

Question 4

theory of electromagnetic induction

Answer 4

“whenever the flux linking a coil changes an emf is induced”

Question 5

this collects current from armature conductors and is made out of copper segments insulated by mica

Answer 5

commutator

Question 5

an alternating current electrical generator that produces a single, continuously alternating voltage.

Answer 5

single turn generator