A 120-V rms signal at 60 Hz is applied across a series combination of a 30-mH inductor and a 100-? resistor. What is the rms value of the voltage across the resistor?
A) 120 V
B) 60 V
C) 100 V
D) 150 V
E) 0.70 V
A
You might also like to view...
If the theory that novae occur in close binary systems is correct, then recurrent novae should
a. produce synchrotron radiation. b. occur in regions of star formation. c. not occur in old star clusters. d. all be visual binaries. e. repeat after some interval.
The Schwartzschild radius for a 12 solar mass star is:
A) 4 km. B) 15 km. C) 36 km. D) 100 km. E) 3000 km.
A ball is projected upward at time t = 0 s, from a point on a flat roof 10 m above the ground. The ball rises and then falls, missing the roof, and strikes the ground
The initial velocity of the ball is Consider all quantities as positive in the upward direction. Neglect the effects of air. At time the vertical velocity of the ball is closest to A) 0 m/s. B) +175 m/s. C) +12 m/s. D) -175 m/s. E) -12 m/s.
Mike performed 5 J of work in 10 secs. Joe did 3 J of work in 5 secs. Who produced the greater power?
a) Mike produced more power b) Joe produced more power c) both produced the same amount of power