An capacitor consists of two large parallel plates of area A separated by a very small distance d. This capacitor is connected to a battery and charged until its plates carry charges +Q and -Q, and then disconnected from the battery
If the separation between the plates is now doubled, the potential difference between the plates will A) double.
B) quadruple.
C) be cut in half.
D) be cut in fourth.
E) not change.
A
You might also like to view...
The Sun crosses the celestial equator going southward at the point called the _____
A) vernal equinox B) winter solstice C) summer solstice D) autumnal equinox
A river flows toward the East at 2.2 m/s. Steve can swim 2.5 m/s in still water. If he wishes to cross the river so that his direction is northward, how long will it take him to cross the 75 m wide river?
A. 34 s B. 39 s C. 30 s D. 63 s
The Crab Pulsar has a period of length 33.085 ms. It is estimated to have an equatorial radius of 15 km, about average for a neutron star. What is the value of the centripetal acceleration of an object on the surface at the equator of the pulsar?
a. 
b. 
c. 
d. 
A compact disk rotates at 210 revolutions per minute. What is its angular speed in rad/s?
A) 11.0 rad/s B) 22.0 rad/s C) 45.3 rad/s D) 69.1 rad/s E) 660 rad/s