Need help with right hand grip rule, in all possible examples (1 Viewer)

[Shoom]

In Q21 in the HSC how should I use the right hand grip rule it does not make sense to me.

Also this motor can it work using two coils and two nails instead of three?
http://au.youtube.com/watch?v=h6Ev64h49wg

 

[dolbinau]

Which HSC?

 

[Twickel]

2007 when I apply the right hand palm rule is it always on the leftside on the dc motor?

 

[wozzame]

2007 when I apply the right hand palm rule is it always on the leftside on the dc motor?

Yes, for the 2007 Q21, the right-hand palm rule indicates that the motor is spinning clockwise, and therefore the weight should be added to position X (left side) in order to stop the spinning.


Shoom, if you're talking about the 2007 HSC also, then you need to apply the right-hand palm rule, not the grip/screw rule.

 

[Twickel]

my physics book says to apply the rule on the left side to dtermine the direction of the spinning motor this rule is hard to apply

 

[Shoom]

In HSC paper 2005, why is the answer to Q 7 A ?

If I apply the right push rule to the left side of the motor in option A it spins anti clockwise