When an LCR series circuit is in resonance, its impedance is:
a. a maximum.
c. zero.
b. equal to its resistance.
d. p/2 W.
B
You might also like to view...
The "top-down" approach to creating artificial life starts
A) in the laboratory with the raw ingredients of life, and seeks to reproduce life in much the same way that it presumably originated billions of years ago B) with a complex organism and then removes cells that are not absolutely necessary C) with existing organisms and genetically strips them down, then tries to rebuild them into new species D) with animal cells and attempts to clone them
A distinctive feature of quarks is that they
A) are always observed singly, since they do not readily interact with other particles. B) have zero charge. C) have zero rest mass. D) have fractional electric charge.
A difference between the special and general theories of relativity is that
A. special relativity is valid only in stationary reference frames. B. special relativity deals with accelerated systems. C. general relativity deals with accelerated systems. D. general relativity only deals with swiftly moving objects.
Which one of the following is normally not a characteristic of a simple two-lens refracting astronomical telescope?
A) The final image is virtual. B) The final image is inverted. C) The angular size of the final image is larger than that of the object. D) The objective forms a virtual image.