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 79 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
Great answer, keep it coming :)

  • Member
  • Posts:
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Conduction of the action potential along an axon. Conduction of the action potential along an axon.
Orifice plate & Turbine Flowmeter Experiment Orifice plate & Turbine Flowmeter Experiment
Suggested Antibiotic Prophylaxis Regimens in Patients at Potential Increased Risk of Hematogenous ... Suggested Antibiotic Prophylaxis Regimens in Patients at Potential Increased Risk of Hematogenous ...
Difference Between a Sidereal Month and a Synodic Month Difference Between a Sidereal Month and a Synodic Month
Solve Diophantus’s Problem B–8: To find two numbers such that their difference a Solve Diophantus’s Problem B–8: To find two numbers such that their difference a
Potential energy Potential energy
Video: Types of energy transfer reactions: oxidation-reduction reactions and ATP generation reactions

For a complete list of videos, visit our video library