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Generator in Trinidad und Tobago

About points...

We associate a certain number of points with each exercise.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.

That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.

About difficulty...

We associate a certain difficulty with each exercise.
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.

That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:

Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise

Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise

Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise

Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise

Level 5 -
Level 6 -

Exercise

https://texercises.com/exercise/generator-in-trinidad-und-tobago/

Question

Solution

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\(\LaTeX\)

Need help? Yes, please!

The following quantities appear in the problem: Magnetische Flussdichte \(B\) / elektrische Spannung \(U\) / Fläche \(A\) / Winkelgeschwindigkeit / Kreisfrequenz \(\omega\) / Anzahl \(N\) /

The following formulas must be used to solve the exercise: \(\hat u = NBA\omega \quad \) \(\hat u = u \cdot \sqrt{2} \quad \)

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Exercise:
Im Inselstaat Trinidad und Tobago in den kleinen Antillen hat der Wechselstrom eine effektive Spannung von V. Ein Generator besteh aus einer Spule mit num Windungen einer Fläche von .decimetersquared und einem Magneten der Stärke mT könnte auf Trinidad und Tobago Spannung ins Netz speisen. Wie viel Zeit vergeht zwischen zwei aufeinanderfolgen Nulldurchgängen der sinusförmigen Spannung?

Solution:
newqtyUeV newqtyN newqtyAo.decimetersquared newqtyAAon squaremeter newqtyBomT newqtyBBon T % Geg sscUeff Ue N N A Ao A B Bo B % GesZeitt sis % Die Maximalspannung in Trinidad und Tobago beträgt solqtyhusqrt sscUeffsqrt*UenV hat u huf sqrt Ue hu. % Die Kreisfrequenz dieses Wechselstromes ist solqtywfracsqrt sscUeffNBAhun/Nn*Bn*Anrps solqtyTfracpiomega*pi/wns omega frachat uNBA wf frachuN B A w pf T TTTT. % Die Dauer zwischen zwei Nulldurchgängen ist demnach solqtytfracpi NBAsqrtsscUeffTn/s al t fracT fracfracpiomega fracpiomega tf fracT t. % t tf tII Tect-

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Contained in these collections:

Generator by pw

2 | 7
Generatoren by TeXercises

1 | 8
Generator 2 by uz

1 | 5

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Tags	ac, generator, induktion, maximalspannung, physik, spannung, wechselspannung
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Difficulty	(3, default)
Points	3 (default)
Language	(Deutsch)
Type	Calculative / Quantity
Creator	uz
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