This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: When a capacitor has a charge of magnitude 80 C on each plate the potential difference across the ... (Read 13 times)

schs14

  • Hero Member
  • *****
  • Posts: 569
on: Jul 28, 2018
When a capacitor has a charge of magnitude 80 C on each plate the potential difference across the plates is 16 V. How much energy is stored in this capacitor when the potential difference across its plates is 42 V?
 a. 1.0 mJ
  b. 4.4 mJ
  c. 3.2 mJ
  d. 1.4 mJ
  e. 1.7 mJ

Question 2

A 4.0-mF capacitor initially charged to 50 V and a 6.0-mF capacitor charged to 30 V are connected to each other with the positive plate of each connected to the negative plate of the other. What is the final charge on the 6.0-mF capacitor?
 a. 20 mC
  b. 8.0 mC
  c. 10 mC
  d. 12 mC
  e. 230 mC


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kiamars2010

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

d


schs14

  • Member
  • Posts: 569
Reply 2 on: Jul 28, 2018
Gracias!

covalentbond

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Potential uses of stem cells Potential uses of stem cells
Difference between chromosomes, chromatids, and chromatins Difference between chromosomes, chromatids, and chromatins
Characteristics of a Neuron at Rest and During the Different Phases of an Action Potential Characteristics of a Neuron at Rest and During the Different Phases of an Action Potential
Refractory periods associated with an action potential. Refractory periods associated with an action potential.
Orifice plate & Turbine Flowmeter Experiment Orifice plate & Turbine Flowmeter Experiment
Magnitude of Geologic Time Magnitude of Geologic Time
Video: Calvin cycle (The light-independent reactions )

For a complete list of videos, visit our video library