What is the inductance of a series RL circuit in which R = 1.0 K? if the current increases to one-third of its final value in 30 ?s?
a. 74 mH
b. 99 mH
c. 49 mH
d. 62 mH
e. none of the above
a
You might also like to view...
Which of the following statements best describes what is "relative" in the theory of relativity?
A) The theory says that measurements of motion make sense only when we state what they are measured relative to. B) The theory says that everything is relative. C) The theory says that the speed of light is relative and depends on who is measuring it. D) The theory says that truth can never be established in any absolute sense. Answer: A
The term light year describes a measurement of _____.
A. Distance B. Prior experiences C. Limited course offerings D. Poverty
A 1-kg ball dropped from 2 m rebounds only 1.5 m after hitting the ground. The amount of energy converted to heat is about
A) 0.5 J. B) 1.0 J. C) 1.5 J. D) 2.0 J. E) more than 2.0 J.
What is aerobraking?
A) the technique of using a planetary atmosphere to change the orbit of a spacecraft B) the use of a planetary atmosphere to redirect a spacecraft to another planet C) the controlled landing of a spacecraft on a planetary surface D) the gradual decrease of speed as a spacecraft leaves the solar system E) the destruction of a spacecraft by the intense pressure as it descends into the atmosphere