Multiple Choice
The principal advantage of ac power over dc power is that
A) more energy is dissipated during transmission.
B) ac circuits multiply power more easily.
C) ac circuits are safer.
D) ac voltage oscillates while dc voltage does not.
E) ac voltage can be transformed via conventional transformers.
Correct Answer:

Verified
Correct Answer:
Verified
Q23: Which pole of a compass needle points
Q53: Several paper clips dangle from the north
Q54: Magnetic domains normally occur in<br>A) copper.<br>B) silver.<br>C)
Q55: Which force field can accelerate an electron,
Q56: A device that transforms mechanical energy into
Q57: Pigeons navigate primarily by<br>A) magnetic sensors in
Q59: Thrust a magnet into a coil of
Q60: Like kinds of magnetic poles repel while
Q61: The magnetic field strength inside a current-carrying
Q63: The major advantage of MHD generators over