Imagine that you feed alternating current to an inductor with high inductance and very low resistance. Suppose we slowly increase the frequency of this alternating current while keeping the amplitude ?0 of the applied emf constant. How does the amplitude i0 of the alternating current flowing in the coil change (or does it)?
A. 25,000
B. 4000
C. 2500
D. 40
E. 25
F. Some other result (specify).
T. One needs more information to answer.
B. 4000
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Jupiter and Saturn emit ____ heat than absorbed from the Sun due to _____ is the result of____
a. excess; nuclear reactions in their liquid metallic hydrogen cores. b. less; nuclear fusion of hydrogen to helium in their liquid metallic hydrogen cores. c. excess; heat left over from their formation d. less; heat left over from their formation
The main reason that gamma photons are more penetrating than either alpha particles or electrons is that
A. They are uncharged. B. They have no rest mass. C. They travel at speed c. D. They have more energy than electrons. E. They don’t ionize atoms as electrons do.
What is the significance of large percentage of oxygen in Earth's atmosphere?
What will be an ideal response?
Consider the n = 9 shell. (a) What is the largest value of the orbital quantum number, l, in this shell? (b) How many electrons can be placed in this shell?
What will be an ideal response?