An LC circuit is to have resonant oscillations at 5.0 MHz. Find the value of a capacitor which will work with a 1.0-mH inductor
a. 2.0 mF
b. 1.0 ?F
c. 0.020 ?F
d. 1.0 pF
e. 40 pF
d
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Regarding the energy efficiency of incandescent and fluorescent bulbs,
A) incandescent is more efficient because the electric current heats the wire filament directly. B) incandescent is more efficient because it uses electric current, which is a highly efficient energy form. C) fluorescent is more efficient because it does not use an actual electric current (a flow of electrons). D) fluorescent is more efficient because very little heating is involved. E) the two types have roughly equal efficiencies.