A nonuniform linear charge distribution given by ?(x) = bx, where b is a constant, is distributed along the x axis from x = 0 to x = +L. If b = 40 nC/m2 and L = 0.20 m, what is the electric potential (relative to a potential of zero at infinity) at the point y = 2L on the y axis?
A. 19 V
B. 17 V
C. 21 V
D. 23 V
E. 14 V
Answer: B
You might also like to view...
What is the main optical element of a refractor telescope?
A. lens. B. mirror. C. combination of many small plane mirrors. D. prism of glass.
How far does light travel in a century?
A. 
B. 
C. 
D. 
E. 
A crate travels through a factory on a horizontal conveyor belt at a constant speed. If air resistance is negligible, what forces are active on the box?
A. Normal force, weight, static friction. B. Normal force, weight, force of the conveyor belt C. Normal force, weight, force of the conveyor belt, static friction D. Normal force and weight.
How long ago did the Big Bang occur?
a. About 6,000 years ago. b. 15 thousand years ago. c. 15 million years ago. d. 15 billion years ago. e. 15 trillion years ago.