When a current of 2.0 A flows in the 100-turn primary of an ideal transformer, this causes 14 A to flow in the secondary. How many turns are in the secondary?
A) 4 B) 114 C) 356 D) 700 E) 14
E
You might also like to view...
In contradiction to the teachings of Aristotle, Galileo found that an object with no forces (and no friction) acting on it will ____
a. move faster and faster b. eventually stop moving c. move at a constant speed forever d. first increase and then decrease in speed e. first decrease and then increase in speed
You experience weightlessness
A) in the absence of a supporting surface. B) momentarily when you step off a chair. C) in a freely falling elevator. D) all of the above
In the double-slit experiment with electrons,
A) the impact point of each electron cannot be predicted, and neither can the overall pattern of impact points. B) the impact point of each electron can be predicted, but the overall pattern of impact points cannot be predicted. C) the impact point of each electron cannot be predicted, but the overall pattern can be predicted. D) the impact point of each electron can be predicted, and so can the overall pattern of impact points of a large number of electrons. E) electrons turn into giraffes.
The photons having least energy are those of
A) infrared. B) red light. C) green light. D) blue light. E) ultraviolet.