BOARD EVALUATION 2026 GUARANTEED
PASS ANSWERS GRADED A+
● Why does induced current alternate direction in an alternator? Answer:
Opposite magnetic poles induce current in opposite directions.
● How does a transformer induce current in its secondary coil? Answer:
A changing magnetic field from AC in the primary induces current in the
secondary.
● What determines the voltage output of a transformer? Answer: The
ratio of turns between the primary and secondary coils.
● Why won't DC applied to a transformer produce output? Answer: DC
does not create a changing magnetic field.
● What waveform does a basic inverter produce? Answer: A square
wave caused by sudden switching of current direction.
● What do switching transistors do in an inverter? Answer: They switch
small currents that are then amplified, producing a square wave.