Which draws more current, a 60-W or a 100-W incandescent lamp, both rated for 120-V operation?
A) 60-W lamp
B) 100-W lamp
C) both the same
Answer: B
You might also like to view...
An electron is accelerated from rest through a potential difference of 1.02 MeV. If the rest energy of the electron is 0.51 MeV, how fast is the electron moving?
A. 0.57 c B. 0.30 c C. 0.67 c D. 0.90 c E. 0.94 c
What is the smallest mass a newborn star can have?
A) 8 times the mass of Jupiter B) 80 times the mass of Jupiter C) 800 times the mass of Jupiter D) about 1/80 the mass of our Sun E) about 1/800 the mass of our Sun
For a quantity of ideal gas, which of the following is constant?
a. PTV c. PT/V b. P/TV d. PV/T
Radio telescopes allow us to observe objects that are too cold to emit strongly in the visible part of the spectrum. Astronomers still use images of these object for study. What kind of images are these?
A. black-and-white images B. false-color images C. artist's renditions D. holographic images E. Astronomers do not use images to study radio objects.