Reactance: A 120-V rms voltage is applied across a 6.0-?F capacitor. If the frequency of the generator is 60 Hz, what is the rms value of the current in the circuit?
A. 0.47 A
B. 0.37 A
C. 0.071 A
D. 0.17 A
E. 0.27 A
Answer: E
You might also like to view...
What is the frequency of a wave if its period is 0.25 seconds?
A. 1.0 Hz B. 0.25 Hz C. 12 Hz D. 4.0 Hz.
Briefly explain how we can use spectral lines to determine an object's rotation rate
What will be an ideal response?
A movie projector is equipped with a 0.5-meter focal length lens that is positioned 0.506 meters from the film. (a) How far from the lens must the screen be if the image on it is to be in focus? (b) How many times larger is the image than the object? (c) Is the image produced a real or a virtual image?
Specific Heat: A thermally isolated system is made up of a hot piece of aluminum and a cold piece of copper, with the aluminum and the copper in thermal contact. The specific heat capacity of aluminum is more than double that of copper. Which object experiences the greater magnitude gain or loss of heat during the time the system takes to reach thermal equilibrium?
A. the aluminum B. the copper C. Neither one; both of them experience the same size gain or loss of heat. D. It is impossible to tell without knowing the masses. E. It is impossible to tell without knowing the volumes.