This topic contains a solution. Click here to go to the answer

Author Question: Capacitor 1 has parallel plates of length L and width W, plate separation d, and is filled with ... (Read 131 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
Capacitor 1 has parallel plates of length L and width W, plate separation d, and is filled with dielectric with constant K.Capacitor 2 has parallel plates of length 2L and width 2W, plate separation 2d, and is filled with dielectric with constant 2k. If a voltage V is applied to capacitor 1 and a voltage 2V is applied to capacitor 2, which capacitor stores more energy and by what factor?
 a. Capacitor 2 by a factor of 8
  b. Capacitor 2 by a factor of 16
  c. Capacitor 1 by a factor of 4
  d. Both capacitors store the same energy.

Question 2

Two hoops or rings (I = MR2) are centered, lying on a turntable. The smaller ring has radius = 0.050 m; the larger has radius = 0.10 m. Both have a mass of 6.0 kg. What is the total moment of inertia as the turntable spins? Ignore the mass of the turntable.
 a. 0.030 kgm2
  c. 0.038 kgm2
  b. 0.0075 kgm2
  d. 0.075 kgm2



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kkenney

  • Sr. Member
  • ****
  • Posts: 352
Answer to Question 1

A

Answer to Question 2

D





 

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

For a complete list of videos, visit our video library