The earth's northern magnetic pole acts like
A)
it has negative charge.
B)
it has positive charge.
C)
it has no charge.
D)
the north pole of a magnet.
E)
the south pole of a magnet.
Question 2
In a transformer, the power input
A)
is larger than the power output.
B)
is equal to the power output.
C)
is smaller than the power output.
D)
can be either larger or smaller than the power output.