what are cathode rays?

Question and answer

Question

Asked 10/13/2008 11:37:12 AM

Updated 5/7/2014 8:41:37 PM

1 Answer/Comment

This conversation has been flagged as incorrect.

Flagged by yeswey [5/7/2014 8:40:59 PM]

Get an answer

Search for an answer or ask Weegy.

Original conversation

User: what are cathode rays?

Weegy: Cathode rays are electrons which are emitted from gases trapped inside a cathode ray tube. A cathode ray tube is a glass tube from which most of the air has been evacuated. [ The tube has electrodes placed at each end and a high-voltage current is passed through the electrodes. A ray is produced at the cathode (negative pole) and travels to the anode (positive pole). The ray is called "cathode ray" because it comes from the cathode. JJ Thomson used cathode ray tubes to demonstrate that the cathode ray responds to both magnetic and electric fields. Since the ray was attracted to a positive electric plate placed over the cathode ray tube (beam deflected toward the positive plate) he determined that the ray must be composed of negatively charged particles. He called these negative particles "electrons."
http:// /question/?qid=20070617093802AANWs8P ]

User: what is cathode glow?

Weegy: almost to the cathode; the cathode itself was covered with a purple glow, and
[www.dartmouth.edu/~physics/labs/p1/lab3.pdf]

Question

Asked 10/13/2008 11:37:12 AM

Updated 5/7/2014 8:41:37 PM

1 Answer/Comment

This conversation has been flagged as incorrect.

Flagged by yeswey [5/7/2014 8:40:59 PM]

New answers

Rating

yeswey

Cathode glow is a thin layer of luminosity immediately surrounding the cathode in a Crookes tube.

Added 5/7/2014 8:41:37 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/7/2014 8:43:21 PM]

Comments

There are no comments.

Add an answer or comment

30,328,594

questions answered

Get answers from Weegy and a team of really smart live experts.

Popular Conversations

In 1979, the United States faced a hostage crisis in A. ...

7/12/2019 3:14:23 PM| 6 Answers

Writs of Assistance allowed the English to search anywhere in the ...

7/10/2019 9:49:58 AM| 4 Answers

Within the National Incident Management System Characteristics, the ...

7/11/2019 1:42:29 AM| 3 Answers

If you have a long title for a table and need it to span several ...

Weegy: If you have a long title for a table and need it to span several cells, you can use Merge Cells. User: How ...

7/10/2019 2:34:56 PM| 3 Answers

You should always measure your following distance in __________ A. ...

7/10/2019 4:02:27 AM| 3 Answers

A future offspring has just been conceived. When does it have the ...

7/12/2019 3:01:03 PM| 3 Answers

What is the most important part of the representative democracy? ...

7/12/2019 1:22:20 PM| 2 Answers

Change the number 43,456 to its word name. A. Forty-three ...

7/19/2019 2:17:52 AM| 2 Answers

What is gravity ?

Weegy: ]

7/19/2019 3:13:18 PM| 2 Answers

When 30.0g of aluminum reacts with HCl, how many grams of aluminum ...

7/14/2019 1:19:27 AM| 2 Answers

Hitting your head at 15 mph can?

7/12/2019 7:56:05 PM| 2 Answers

What is a command post?

Weegy: Command is the act of directing, ordering, or controlling by virtue of explicit statutory, regulatory, or ...

7/12/2019 6:32:10 PM| 2 Answers

W I N D O W P A N E

Stream. Live.

Windowpane is the live-streaming social network that turns your phone into a live broadcast camera for streaming to friends, family, followers, or everyone. Share what’s outside your window and all around you. Earn a little too.

Top Ranked Experts *

Order Points Ratings Comments Invitations

Bum_Aquino