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They are not obliged to provide any formula that is not published in the syllabus. The formula sheet is provided on the board of studies website. Any thing that is defined in the syllabus but isn't provided with a formula won't be givem. Eg. Magnetic Flux, Induced EMF

If you are measuring to the centre of mass it should go through the origin. In the real world, most people don't measure to the centre of mass, so there is an error and that is represented by the line not going through the origin.

No it isn't transformed to AC, as the current supplied only travels in one direction. It will have alternative direction currents produced when it is switched on and off. Its commonly called a chopped DC. It uses a DC supply but yes it is similar to AC because the flux is changing and thuis...

There have been a number of past questions that require you to know induced currents can be produce by switching on and off DC.

You mean in transmission? DC transmission in superconductors has the advantage of no power loss due to resistance (old disadvantage of DC) and it doesn't suffer loses due to induced currents in surrounding metals (disadvantage of AC). They also do not emit electromagnetic radiation

Yes it is. Clockwise and anticlockwise is fine as long as you talk about which end you are looking at.

Amperes are not the unit of energy. The basis of your answer is correct till you reached there. E_{1}=E_{2} V_{1}I_{1}t=V_{2}I_{2}t V_{1}I_{1}=V_{2}I_{2} \frac{I_{p}}{I_{s}}=\frac{V_{s}}{V_{p}} Since the secondary coil has less coils it has less magnetic flux, so the change in flux will...

P!xel, you need to fix your area in the last question MrLuvable, remember the \Theta has a different meaning in the two equations.

Here's an article that outline how it works and why mass request take forever. It also shows DET is running both a black and whitelist Teachers attack NSW DET filter: News - Software - ZDNet Australia

If you are after individual questions, I can answer but maybe sugest the school buys it. Or you could but I doubt you would want to spend the money Temple Books Australia: Science-Physics

Don't expect a quick reply and don't be surprised if they black ban you if they think you are spamming.

If you are running at a constant speed, it will appear exactly as you would see if you were stationary due to the principal of relativity holding in all intertial frames of reference.

Could you sketch a picture. I would be using the right hand palm (slap) rule. Point the thumb in the direction of the current in the aluminium foil, fingers pointing from the N to S of the horseshoe and plam pointing in the dirction of the force and deflection on the Aluminium.

I have had the frustration of putting in too many requests and speaking to too many people who control the filters when they are working and when they aren't.

IT only accepts request from DET accounts, not students.

It is an application of lenz's law and you tell the way in the same way as any other induction question. Induction Motors

IT is a series of people employed for the job. It is not automated and can take a week or more sometimes.

You need to think about the angle between the wire and the magnetic field. The angle remains ninety degrees as the coil rotates, so the force remains the same.

Good luck, you've done the work and it seems to going the correct way.

1. Last we were told it was a whitelist now but they keep changing it 2. Teachers can check if a site is blocked or not but I haven't seen a full list 3. Just checked and they are not banned by the DET but individual schools might. It is classified as educational/reference 4. IT is banned with a...