Series/Parallel Circuits: A 3.0-? resistor is connected in parallel with a 6.0-? resistor. This combination is then connected in series with a 4.0-? resistor. The resistors are connected across an ideal 12-volt battery. How much power is dissipated in the 3.0-? resistor?
A. 2.7 W
B. 5.3 W
C. 6.0 W
D. 12 W
Answer: B
You might also like to view...
In what way do observations of binary star systems support the special theory of relativity?
A) The fact that the stars appear distinct supports the idea that the speed of light is unaffected by the motion of the stars. B) Stars in binary systems often orbit at speeds close to the speed of light, allowing us to check whether time dilation really occurs. C) Stars in binary systems are moving, so we can compare their moving masses to their rest masses. D) Binary systems have two stars, and therefore give us twice the opportunity to test the theory than single star systems.
Which of the following will increase the capacitance between the plates of a parallel plate capacitor?
A) Increase the charge on the plates. B) Decrease the potential between the plates. C) Increase the potential between the plates. D) Introduce a dielectric material between the plates. E) none of the above
What is a white dwarf?
A) a star that follows a period-luminosity relation B) a type of star that produces energy by gravitational contraction C) a main-sequence star of spectral type F, which tends to look white in color D) the remains of a star that ran out of fuel for nuclear fusion
In comparing our own solar system with others found to date, we find:
A) most orbits are less circular than the orbits of planets around our Sun. B) jovians often lie much closer to their suns than ours do. C) multiple planets are found in some systems. D) hot Jupiters, even closer to their stars than Mercury is to our Sun. E) All of the above