A charge, +Q, is placed inside a balloon and the balloon is inflated. As the radius of the balloon r increases the number of field lines going through the surface of the balloon:
a. increases proportional to r2.
b. increases proportional to r.
c. stays the same.
d. decreases as 1/r.
c
You might also like to view...
An object is moving with constant non-zero velocity on the +x axis. The velocity versus time graph of this object is
A) a horizontal straight line. B) a vertical straight line. C) a straight line making an angle with the time axis. D) a parabolic curve. E) a hyperbolic curve.
The only place outside of Earth for which there is irrefutable evidence for ancient, microbial life is
A) Europa. B) the Moon. C) Mars. D) Titan. E) None of the above—there is no irrefutable evidence for life beyond Earth.
Two 4.0-? resistors are connected in parallel, and this combination is connected in series with 3.0 ?. What is the equivalent resistance of this system?
A) 1.2 ? B) 5.0 ? C) 7.0 ? D) 11 ?
When the electrons in an atom are in their lowest possible energy levels, the atom is said to be in its ____________________ state
Fill in the blank(s) with correct word