WEBVTT
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So for the first part, we're looking for maximum
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current and maximum current eyes. Given by Holmes Law
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. I max is equal to M f over resistance
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now, So you might as well be ups.
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Nothing. 24 bolts and resistance is 4.5 homes.
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That gives you current off. 5.33 amperes. Uh
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, put beef. Ask you for the time Constant
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. How that's just equal to induct him over.
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Resistance conductors is 12. Henry. Resistance is 4.5
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poems. This gives you 2.67 seconds from the time
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constant on for parts. See, we're using.
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We're using the fact that I is actually to get
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it at any time. T i is, uh
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, absalon over our asses with max times one minus
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, uh, exponent of minus t. Over time
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, constant taliban is calculated. So given that,
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um, the we want the time at which reaches
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95%. So your current that you're looking for I
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won over your max. Current has to be 95%
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and that is equal to a CZ, you know
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, absolute. Over our times one minus you to
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the minus t over. Tell over Absalon over our
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cause that's the max current. So this factor goes
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, Are you just left with the one minus t
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over Talbot? Alright, Eh, So you move
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the 10.95 to the to the right hand side and
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you moved the absolute the expert in term too.
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Though left hand side, what you get is exponent
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of minus T. Ever tell is 0.5 Take the
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log of that. And so, minus t of
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the towel. The goal to log. Um,
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he called a lot of points off five and Tyler's
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vinos, 2.67 seconds. This implies that tea,
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uh, the time taken will be approximately very close
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to its end.