A transformer consists of a 1000-turn primary coil and a 4000-turn secondary coil. If the current in the secondary is 3.00 A, what is the primary current?
a. 6.00 A
c. 48.0 A
b. 0.750 A
d. 12.0 A
D
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Aside from Earth, Venus is the most likely place for life to exist in the Solar System
a. True b. False Indicate whether the statement is true or false
Calculate the ground state energy of a harmonic oscillator with a classical frequency of 3.68 × 1015 Hz. (1 eV = 1.60 × 10-19 J, h = 1.055 × 10-34 J ? s, h = 6.626 × 10-34 J ? s)
A) 7.62 eV B) 15.2 eV C) 11.4 eV D) 5.71 eV
Suppose the room in which you are sitting was magically transported off Earth, and sent accelerating through the universe at 9.8 m/s2 Assuming your doors and windows are sealed and closed, how could you tell that you'd left Earth?
A) You would weigh more than you do on Earth. B) You couldn't—the equivalence principle tells us that you won't be able to tell the difference. C) Your time would run slower than it does on Earth. D) You'd hear a loud whooshing sound as you careened through space.
Historically, the earliest atomic model to explain electrical phenomena was
A) the quantum model. B) the planetary model. C) the Hollywood model. D) the Greek model. E) Galileo's model.