Do we have to know this? (1 Viewer)

[Dash]

Are we required to know what a single-phase motor and a three-phase motor is?
Also, are we supposed to know what a synchoronous motor is?

Help!

 

[Rahul]

hmm...i just remembered, you will definitely need to know the triple phase motor.

the single phase motor is just the simple ac motor [with slip rings]

not sure about synchronous motors

 

[Fosweb]

That bit confuses me too. It really doesnt say exactly what sort of ac motor it wants you to know...
But if you know it - and it comes up - then you won't have to worry.

 

[Dash]

Originally posted by Rahul
hmm...i just remembered, you will definitely need to know the triple phase motor.

the single phase motor is just the simple ac motor [with slip rings]

not sure about synchronous motors

Yeh, the single-phase is a common ac motor, your right

Originally posted by Fosweb
That bit confuses me too. It really doesnt say exactly what sort of ac motor it wants you to know...
But if you know it - and it comes up - then you won't have to worry.

Yeh, I think i'll end up doing it anyway...

 

[SmokedSalmon]

I believe synchronous motors are no longer in the syllabus.. well that is what this website states.
http://webs.mn.catholic.edu.au/physics/emery/hsc_motors.htm#squirrel

 

[Rahul]

that website has said the same thing about the twins paradox [that it wasnt examinable] and evidence for time dilation, but it has been part of the syllabus and been in questions over the years.

up to you to be on the safe side...

 

[Dash]

Anyone wanna call up the advice line about this??

 

[SmokedSalmon]

I think I will do the honours, I seem to call them up alot. May as well I'll post up what they say later.

 

[Dash]

haha... thanks for that!

 

[helper]

Originally posted by Rahul
that website has said the same thing about the twins paradox [that it wasnt examinable] and evidence for time dilation, but it has been part of the syllabus and been in questions over the years.

up to you to be on the safe side...

This years syllabus is different to the last two years/

 

[Rahul]

yes, but i checked the last years syllabus[infront of the jac book] and compared it to the new syllabus; i didnt find anything taken out from teh old one that would affect that section[twins parradox].

 

[SmokedSalmon]

Hey all, I called up the HSC advice line regarding the site http://webs.mn.catholic.edu.au/physics/emery/hsc_motors.htm#physio

Ok For Space

* You won't be asked a stand alone question on Twin Paradox, Evidence of Time Dilation (know it just to broaden ur understanding), Future space travel and Four Dimensional space time. So learn a lil bit about them if you have the time.

For M&G:
* You need to know how an single-phase AC motor operates. I.e. the stator, magnetic field.
You do NOT have to know its uses in society, the advantages and disadvantages of using the motor.
Also no need to know what synchronous, commutator or universal motors are.

Ok hope that cleared a few things up. Please don't kill me if I get it wrong... I am just telling you what the teacher told me.
Good luck people not long now!

 

[Dash]

Sweet!
Great stuff smoked, you made my day!!

 

[Rahul]

but i spend time for the space ones

but it did learn heaps about relativity from it, so its all good