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Magnetism

New kid on the Block

 Joined: 21 Oct 2011 Post: 3
21 Oct 2011 04:28:00 IST
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Helix and its pitch
Engineering Entrance , Medical Entrance , NEET , JEE Main , AIIMS , JEE Main & Advanced , Physics , Magnetism

How to calculate the pitch of the helixx...

Blazing goIITian

Joined: 8 Oct 2008
Posts: 8064
21 Oct 2011 17:42:32 IST
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Example for finding the pitch distance

The expression for radius is similar as that for the circular motion under magnetic field (earlier case). The only change is that v is exchanged by v .

R=mvqB=mvsinθqB

The expressions for time period, frequency and angular velocity etc do not change as these parameters are independent of velocity.

The distance between two consecutive points in x-direction determines the pitch of the helical path. This distance in x-direction is traveled by the particle with the parallel component of velocity in the time in which particle completes a revolution. If T be the time period of revolution, then pitch, p, of the helical path is :

p=v????T=vTcosθ=2πmvcosθqB

Blazing goIITian

Joined: 8 Oct 2008
Posts: 8064
21 Oct 2011 17:43:37 IST
0 people liked this

The expression for radius is similar as that for the circular motion under magnetic field (earlier case). The only change is that v is exchanged by v .

R=mvqB=mvsinθqB

The expressions for time period, frequency and angular velocity etc do not change as these parameters are independent of velocity.

The distance between two consecutive points in x-direction determines the pitch of the helical path. This distance in x-direction is traveled by the particle with the parallel component of velocity in the time in which particle completes a revolution. If T be the time period of revolution, then pitch, p, of the helical path is :

p=v????T=vTcosθ=2πmvcosθqB

Blazing goIITian

Joined: 8 Oct 2008
Posts: 8064
21 Oct 2011 17:51:04 IST
0 people liked this

T=

p=

NOW

IN OTHER CASE IF YOU HAVE TO FIND PITCH DISTANCE THEN

FIND THE VERTICAL DISTANCE AND DEVIDE IT BY NO. OF TURNS

New kid on the Block

Joined: 21 Oct 2011
Posts: 3
21 Oct 2011 23:09:04 IST
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Thxxx

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