If the rotating coil used in a generator has its radius doubled, what change results in the amplitude of the voltage produced?
a. It doubles.
c. It is increased by a factor 23/2.
b. It quadruples.
d. It stays the same.
B
You might also like to view...
An object is placed 15.0 cm to the left of a double-convex lens of focal length 20.0 cm. The image of this object is located
A) 60.0 cm to the right of the lens. B) 60.0 cm to the left of the lens. C) 8.57 cm to the right of the lens. D) 8.57 cm to the left of the lens. E) 30.0 cm to the left of the lens.
The frequency of a periodic wave is 325 Hz. If the wavelength is 50.0 cm, then what is the velocity of the wave?
A. 163 m/s B. 203 m/s C. 237 m/s D. 285 m/s E. 316 m/s
The expression(s) indicating the number of neutrons in a nucleus is
a. A b. N c. Z d. Z + N e. A – Z
Thin Lenses: A convex lens has focal length f. If an object is located at "infinity" (very far away), the image formed is located at a distance from the lens
A. of 2f. B. between f and 2f. C. of f. D. between the lens and f. E. of infinity.