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Timer Circuit

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Again, very vague... But the number should kind of represent the "work" required.

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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

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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

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Level 5 -
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Exercise

https://texercises.com/exercise/timer-circuit/

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Exercise:
In a simple timer circuit for an outdoor light a CO capacitor is first charged on ViO and then discharged through a RO resistor. The signal to switch off the light is triggered when the voltage across the capacitor drops below the threshold voltage VfO. abcliste abc Calculate the time it takes the voltage to drop below the threshold voltage. abc What are possible ways to vary the switch-off time? abcliste

Solution:
abcliste abc The voltage across the capacitor is Delta V_Ct Delta V_ e^-t/tau The time it takes the voltage to drop to the trigger voltage sscDelta Vth is given by e^-t/tau fracsscDelta VthDelta V_ Solving for the time leads to t -taufracsscDelta VthDelta V_ tF t approx resulttminP abc There are three ways to vary the switch-off time: itemize item by varying the capacitance item by varying the resitance item by varying the ratio between initial voltage and threshold voltage itemize abcliste

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Attributes & Decorations

Branches	Direct Current
Tags	capacitor, discharging, rc circuit
Content image
Difficulty	(1, default)
Points	0 (default)
Language	(English)
Type	Calculative / Quantity
Creator	by
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