A 120-V rms voltage at 1000 Hz is applied to an inductor, a 2.00-?F capacitor and a 100-? resistor. If the rms value of the current in this circuit is 0.680 A, what is the inductance of the inductor?
A) 34.2 mH
B) 35.8 mH
C) 11.4 mH
D) 17.9 mH
E) 22.8 mH
B
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When astronomers began searching for extrasolar planets, they were surprised to discover Jupiter-sized planets much closer than 1 AU from their parent stars. Why is this surprising?
a) These planets must have formed at larger radii where temperatures were cooler and then migrated inward. b) Jupiter-sized, rocky planets were thought to be uncommon in other solar systems. c) These planets must be the remnants of failed stars. d) Earth-like planets must be rarer than Jupiter-sized planets in other solar systems. e) It is different than in our Solar System.
A closed loop conductor that forms a circle with a radius of 2.0 m is located in a uniform but changing magnetic field. If the maximum emf induced in the loop is 5.0 V,
what is the maximum rate at which the magnetic field strength is changing if the magnetic field is oriented perpendicular to the plane in which the loop lies? A) 0.40 T/s B) 2.5 T/s C) 0.080 T/s D) 5.0 T/s
Quasar redshifts are usually larger than the redshifts of the visible galaxies
a. True b. False Indicate whether the statement is true or false
Name the four principal types of solar system debris; pair them up in terms of composition
What will be an ideal response?