Fourier analysis is something accomplished
A) with all musical instruments.
B) automatically by humans.
C) both of these
D) neither of these
Answer: C
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Three identical resistors are connected in series to a battery. If the current of 12 A flows from the battery, how much current flows through any one of the resistors?
A) 12 A B) 4 A C) 36 A D) 24 A E) zero
A certain kind of lightbulb carries 0.5 amperes of current when connected to a 120 volt AC circuit. What is its power rating?
A. 75 W B. 240 W C. 100 W D. 60 W
An RL series circuit has the following components: 9.2-mH coil, 1.2-? resistor, 16-V battery, ammeter and switch. What is the time constant of this circuit?
a. 1.3E+2 s b. 7.7E–3 s c. 1.4E–3 s d. 6.9E–4 s e. 1.2E–1 s
Why is the angular magnification of a microscope negative?
A. The image is smaller than the object. B. The image is inverted. C. The focal length is negative D. The eyepiece focal length is less than the objective focal length.