The phase angle of a series RL circuit with a 100.0-? resistor and a 20.00-mH inductor is 70.00°. What is the inductive reactance of this circuit?
A) 100.0 ?
B) 150.0 ?
C) 200.0 ?
D) 174.7 ?
E) 274.7 ?
E
You might also like to view...
Where are the globular clusters found?
A. Primarily in the disk, with a few in the bulge B. Anywhere and everywhere- nowhere in particular C. In the solar neighborhood D. In the halo, spherically distributed around the Milky Way center E. Hiding within Bok Globules and molecular clouds
Which of the following statements about the rings of the four jovian planets is not true?
A) All rings lie within their planet's Roche zone. B) All the particle orbits are fairly circular, near their planet's equatorial plane. C) All have gaps and ringlets, probably due to gap moons, shepherd moons, and orbital resonances. D) All probably look much like they did when the solar system first formed. E) All are made of individual particles of rock or ice that orbit in accord with Kepler's laws: inner ring particles orbiting faster, and outer ring particles orbiting slower.
Briefly explain why white-dwarf supernovae are useful for measuring cosmic distances
What will be an ideal response?
Suppose your friend is sitting on a sled and asks you to move her across a flat, horizontal field. You have a choice of (a) pushing her form behind by applying a force downward on her shoulders at 30° below the horizontal (figure a), or (b) attaching a rope to the front of the sled and pulling with a force at 30° above the horizontal (figure b). Which option would be easier?