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

Author Question: The figure shows a steady electric current passing through a wire with a narrow region. What happens ... (Read 63 times)

future617RT

  • Hero Member
  • *****
  • Posts: 543
on: Jul 29, 2018
The figure shows a steady electric current passing through a wire with a narrow region. What happens to the drift velocity of the moving charges as they go from region A to region B and then to region C?
 
  A) The drift velocity decreases from A to B and increases from B to C.
  B) The drift velocity increases all the time.
  C) The drift velocity remains constant.
  D) The drift velocity decreases all the time.
  E) The drift velocity increases from A to B and decreases from B to C.

Question 2

An air-filled capacitor stores a potential energy of due to its charge. It is accidentally filled with water in such a way as not to discharge its plates. How much energy does it continue to store after it is filled?
 
  (The dielectric constant for water is 78 and for air it is 1.0006.)
  A) 0.077 mJ
  B) 468 mJ
  C) 0.040 mJ
  D) 6.00 mJ


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ryansturges

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: E

Answer to Question 2

Answer: A


future617RT

  • Member
  • Posts: 543
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

The anterior pituitary is sometimes called the master gland because it secretes many hormones that r The anterior pituitary is sometimes called the master gland because it secretes many hormones that r
A peroxidation reaction involving a fatty acid is depicted in the figure below. A peroxidation reaction involving a fatty acid is depicted in the figure below.
Demonstrate the Application of Triangular, Figure-Eight, and Tubular Bandages Demonstrate the Application of Triangular, Figure-Eight, and Tubular Bandages
Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme
Drawing of Central PompeII In Its Current State Drawing of Central PompeII In Its Current State
A tightrope walker walks across a 30-m long wire tied between two poles. The center of the wire ... A tightrope walker walks across a 30-m long wire tied between two poles. The center of the wire ...
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library