Home » Ask & Discuss » Physics. » Magnetism « Back to Discussion

Magnetism

New kid on the Block

Joined:	26 Dec 2007
Post:	3

26 Dec 2007 23:31:56 IST

0 People liked this

359

Magnetism

None

A electron being accelerated by 100 V potential is allowed to enter in a magnetic field B,of 0.004T, at an angle 30 degree to B. Find the orbit length and the pitch of the trajectory of the electron inside B.

Share this article on:

Comments (3)

harsh _27

Blazing goIITian

Joined: 21 Apr 2007

Posts: 897

27 Dec 2007 17:59:12 IST

Like 0 people liked this

radius of the orbit,r = mvsin30^o/eB =

[2mK.E.] x sin30/eB

=

{2x9.1x10^-31x100} /[2x1.6x10^-19x0.004]

=

[182x10^-30]/1.28x10^-19

=13.5x10^6/1.28

=1.054x10^7 mt.

pitch of trajectory = Tvcos30 = ^{[ ]}

3 x2

xr = 1.146x10^8 mt.

are the ans. matching?????

manan shukla

Cool goIITian

Joined: 2 Jul 2007

Posts: 65

2 Jan 2008 19:44:21 IST

Like 0 people liked this

use

(2meV/eB) sin 30

manan shukla

Cool goIITian

Joined: 2 Jul 2007

Posts: 65

8 Jan 2008 12:18:11 IST

Like 0 people liked this

pls rate me if i am correct

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team