One end of resistor A is connected to the positive terminal of a battery and the other end is connected to resistor B. The opposite end of resistor B is connected to the negative terminal of the battery. If resistor A has resistance R and B has a resistance 2R, what is the equivalent resistance of this circuit?
a) R
b) 3R/2
c) 2R
d) 2R/3
e) 3R
Ans: e) 3R
You might also like to view...
__________________ is/are caused by the interaction of light waves with the telescope's apertures and thus limit the detail visible in an image
Fill in the blank(s) with correct word
Which of the following is true of elliptical galaxies?
A) They usually have significant, ongoing star formation. B) They usually contain abundant clouds of cool gas and dust. C) They are usually bluish in color. D) They are the most common type of galaxy in the central regions of galaxy clusters.
An ideal air-filled parallel-plate capacitor has round plates and carries a fixed amount of equal but opposite charge on its plates
All the geometric parameters of the capacitor (plate diameter and plate separation) are now DOUBLED. If the original energy density between the plates was u0, what is the new energy density? A) 16u0 B) 4u0 C) u0 D) u0/4 E) u0/16
When an LRC series circuit is at resonance, which one of the following statements about that circuit is accurate? (There may be more than one correct choice.)
A) The reactance due to the inductor and capacitor has its maximum value. B) The reactance of the capacitor is zero. C) The current amplitude is a maximum. D) The reactance of the inductor is zero. E) The impedance has its maximum value.