The electric field at the surface of a positively charged conductor has a direction characterized by which of the following?
a. perpendicular outward and away from the charge
b. at a 45° angle to the surface
c. tangent to the surface
d. perpendicular inward toward the charge
A
You might also like to view...
In what way is the rocky material of Jupiter's core different from the rocks found on Earth?
a. It is much cooler because Jupiter is further from the sun. b. It contains more liquid water. c. It is much hotter and denser because of the extreme pressure at the core of Jupiter. d. It is not composed of iron and nickel because this material will float of the surface e. It is composed entirely of ices that have frozen into a large rock like structure.
Which ball will bounce higher off a hard surface?
A) a common rubber ball B) a steel ball C) both the same
Which one [or ones] of the following is a possible final state for a star that has come to the end of its "lifetime" by running out of fuel and then gravitationally collapsing?
A) neutron star B) white dwarf C) black hole D) All of the above. E) None of the above.
Resolution: Assuming a pupil diameter of 3 mm, what is the angular resolution of the human eye for light at the middle of the visible spectrum (550 nm)?
A. 0.8° B. 0.2° C. 2 mrad D. 0.01° E. 2°