The current produced by a common generator is
A) dc.
B) ac.
C) neither of these
Answer: B
You might also like to view...
Which of the following describes parallax?
A) It is best measured over exactly one year intervals. B) It is inversely proportional to the distance to the star. C) It was first observed by Galileo with his new telescope. D) It is only applicable to objects within the solar system. E) It is more accurate as the distances to objects becomes greater.
A gasoline engine absorbs 2500 J of heat and performs 1000 J of mechanical work in each cycle. The amount of heat expelled in each cycle is
A. 1000 J B. 1500 J C. 2000 J D. 500 J E. 3000 J
Microscopic properties of an object:
a. are just small versions of the macroscopic properties. b. are completely unrelated to macroscopic properties. c. are overall large scale properties. d. are the properties of particles that make up the object. e. are the average of many properties of individual particles.
Light of wavelength 400 nm falls on a metal surface having a work function 1.70 eV
What is the maximum kinetic energy of the photoelectrons emitted from the metal? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s = 4.141 × 10-15 ev ? s, 1 eV = 1.60 × 10-19 J) A) 1.41 eV B) 1.70 eV C) 3.11 eV D) 2.82 eV E) 4.52 eV