The reason the capacitance of a parallel plate capacitor having a dielectric between the plates changes is due to
A. The existence of more dense matter than air or vacuum that forms a barrier for electric field lines and reduces the electric field in the region
B. The polarizability of the material, which sets up an electric field opposite to the applied field, thus reducing the electric field strength in the region
C. The fact that dielectrics have excess charge that then “shields” the plates from each other, reducing the electric field in the region.
D. None of these
B. The polarizability of the material, which sets up an electric field opposite to the applied field, thus reducing the electric field strength in the region
You might also like to view...
Stars in the same constellation
a. probably formed at the same time. b. must be part of the same cluster of stars in space. c. must have been discovered at about the same time at the same location in space. d. may actually be very different distances away from the observer and from each other.
What is the evidence that gamma-ray bursts originate from beyond the Milky Way Galaxy?
What will be an ideal response?
Venus' rotation period is longer than its period of revolution around the Sun
Indicate whether the statement is true or false
The buoyant force of an object is equal to the ______________ of the ______________ it displaces
a. mass; fluid b. weight; fluid c. mass; solid d. weight; solid