Good answer, I would explain maybe 1 more sentence on lamination. ie. The lamination of the iron core limits the size of each induced eddy current to one lamina thick, thus producing less heat.
Ask a question!
There's a thread for every other year so we should have one too! 3 Weeks till HSC lets get the questions going!!
Please answer the question above before asking a new one and keep it within the scope of the syllabus!
I'll start:
Discuss the origins of unwanted heat production in...
Hey Everyone,
Lately I've been hearing alot that it is incorrect to say that the P-N junction uses the photoelectric effect. This is because the photoelectric effect (to what I know) is the complete removal of the binding energy of the atom to its electron and this electron has been liberated...
For part (a), it says you must change the experimental setup so using a stronger magnet will increase the emf.
For part(b), It wants you to sketch the emf wrt to time. The plane of the coil in the position shown in the diagram is enclosing maximum flux, so on the flux vs time graph, it would...
Dear Everyone,
Can people who have finished their prelim chemistry papers please upload them so we can make a resource for students who have not yet completed their prelims and for the next years?
Thanks everyone
(Please do not upload any copyrighted papers ^_^)
Cheers
Hey everyone,
For these holidays I would like a past student or current students to tell me which Trials from what schools I should do that benefit most and I am mostly looking for exams on the more difficult side.
My school will be doing CSSA and so I will be doing all the CSSA ones I could...
Definitely worth it 100% only If you pay close attention and do the homework, if you're planning to be lazy and take the homework and store it don't bother. Good luck
Hey guys,
So this is a concept that has really been confusing and it is one of a pretty common HSC question so it is as follows:
When a horse shoe made of copper is dropped onto a strong magnet, it experiences electromagnetic braking as there is a changing magnetic field, induced emf, it is...
Dr Du has a PHD in the mathematical analysis of the way of going through the most green lines in a straight line. (Or something like that it is about the mathematical analysis of a real life problem). I thought that it was just a name but he really does have a PHD.
Ps. Former student and it was...
I am looking for a 1 on 1 Physics tutor who finished HSC in the past few years and did really well that can mentor me and explain some difficult concepts to me! In the Eastern Suburbs so Hurstville, Rockdale, etc.
Please PM me with your location, whether you would like me to come or we meet...
Sup Guys!!
I'm Mina.
This year I will be doing the Physics HSC.
The subjects I'm planning to keep till year 12 are: Advanced E, Maths Extension 1&2, Chemistry and Physics.
Good luck!!
How's everyone feeling? Ready for the exam tomorrow and is anyone still studying?
Feel like it has kicked in a bit for me starting to feel a bit of stress but other than that I feel pretty weird because I'm not as tense as I was for trials, anyone else?
What’s everyone’s exam technique?