Suppose that you wish to construct a simple ac generator with an output of 12 V maximum when rotated at 60 Hz. A magnetic field of 0.050 T is available. If the area of the rotating coil is 100 cm2, how many turns are needed?
A)
8
B)
16
C)
32
D)
64
E)
128
D
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The hydraulic system in modern aircraft is an example of:
a. Bernoulli's principle. b. Pascal's principle. c. Archimedes' principle. d. Galileo's principle.
Starch is a polymer that consists of long chains of ______________ units
a. lactose b. fructose c. maltose d. glucose
The larger the redshift, the faster the distant galaxy is rushing toward us
Indicate whether the statement is true or false
What does a waxing gibbous moon mean?
a. The changing Moon between full moon and third quarter b. The changing Moon between third quarter and new moon c. The changing Moon between first quarter and full moon d. The changing Moon between new moon and first quarter e. The changing Moon between first and third quarters