A linear charge of nonuniform density ? = bx, where b = 2.1 nC/m2, is distributed along the x axis from x = 2.0 m to x = 3.0 m. Determine the electric potential (relative to zero at infinity) of the point y = 4.0 m on the y axis.
A. 36 V
B. 95 V
C. 10 V
D. 17 V
E. 15 V
Answer: C
You might also like to view...
Why is there a two day difference in the sidereal and synodic months?
A) The Moon speeds up at perigee, and slows down at apogee. B) The sidereal day is four minutes shorter than the solar day, and it adds up. C) The Earth is closer to the Sun during the sidereal month. D) The Earth is also revolving around the Sun, so the Moon must "catch up". E) The Moslem lunar year is only 354 days long, on average.
In a sequence of sedimentary rocks, the bottom layer is the youngest and the top layer is the oldest. This type of sequence suggests that the
A) principles of original horizontality and superposition are flawed. B) beds must have been overturned by some structural disturbance. C) dates for these rocks must be in error. D) principles of original horizontality and superposition hold true.
A 2000 V/m electric field is directed along the +x-axis. If the potential at x = 10 m is 800 V, what is the potential at x = 6 m?
A) 8800 V B) 2000 V C) 7200 V D) 4400 V E) 1600 V
As a star exhausts hydrogen in its core, it
a. becomes hotter and more luminous b. becomes hotter and less luminous c. becomes cooler and less luminous d. becomes larger in radius and hotter