a drill involving basic R-C series transient circuit here, trying to make a mathematical model for the action of relay switch as it opens after some time it has been closed finds relevance in further analysis of system control applied in my present project
drive.google.com/file/d/14Paf2

updated draft up to page 13 to include equation (13.29) and in the updates we have repositioned the step function in equation (9) so as to be more mathematically formal along with some relevant Laplace transforms and basic inverse Laplace transform included in (13.5) there is also an emphasis on initial condition of the overall response
foxtrotpaparomeo.wordpress.com

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I have enough free time today to make some online posts. A sort of a quiz and the answers will be given in a draft form discussing inductor-capacitor (LCF) filter with input (source) voltage derived from full wave rectification. Textbooks discussing system feedback and control are recommended along with basic electronics engineering resource materials on basic power supply engineering.

to correct a misunderstanding even talking to myself bcus inflation happened before bigbang
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the inherent quantum nature of our Universe were seeded during cosmic inflation: a phase that preceded and set up the hot Big Bang
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bigthink.com/starts-with-a-ban

i used to think of big bang as the start of spacetime itself but it's a state of the universe when it had a very low entropy. inflation began first during which spacetime expanded so rapidly then as it ended it dumped all remaining energy that manifested as the big bang

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