Author Question: An air-filled parallel-plate capacitor is connected to a battery and allowed to charge up. Now a ... (Read 46 times)

Tazate

  • Hero Member
  • *****
  • Posts: 532
An air-filled parallel-plate capacitor is connected to a battery and allowed to charge up. Now a slab of dielectric material is placed between the plates of the capacitor while the capacitor is still connected to the battery.
 
  After this is done, we find that
  A) the energy stored in the capacitor had decreased.
  B) the voltage across the capacitor had increased.
  C) the charge on the capacitor had increased.
  D) the charge on the capacitor had not changed.
  E) None of these choices is true.

Question 2

If the electric potential in a region is given by V(x) = 6/x2, the x component of the electric field in that region is
 
  A) -12x-3.
  B) -6x.
  C) 12x-3.
  D) 12x.
  E) 6x.



dlook33

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

Answer: C

Answer to Question 2

Answer: C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Tazate

  • Hero Member
  • *****
  • Posts: 532
Both answers were spot on, thank you once again



dlook33

  • Sr. Member
  • ****
  • Posts: 344

 

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

For a complete list of videos, visit our video library