Lesson 11
312
w w w . p e t e r s o n s . c o m / a r c o
ARCO
■
SAT II Subject Tests
39. A wire and a magnet
are positioned or moved
in a variety of ways. Which of the following
will produce an electromotive force?
(A) Wire
and magnet are stationary, more
than 1m apart.
(B) Wire and magnet are stationary, sepa-
rated by 5mm.
(C) Wire is moved parallel to stationary
magnet.
(D) Magnet is moved parallel to stationary wire.
(E) Wire is moved perpendicular to magnet’s
lines of force.
40. A stationary horn broadcasts an emergency dis-
tress signal
at a constant frequency f. A station-
ary observer hears the signal and then begins to
recede. This
observer will perceive
(A) a
signal with frequency f
(B) a signal with frequency less than
f
(C) a signal
with frequency greater than f
(D) a signal with frequency
f initially, with
the frequency continually increasing
(E) a signal with frequency
f initially, with
the frequency continually decreasing
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