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Thank you We sneak and here's your shmoop du jour

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Brought to you by weird musical instruments whenever your hipster

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cousin breaks out his ukulele and you're weird and starts

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jamming on the digital rue well you can just plug

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in your thurman and show them what a music nerd

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really looks like All right Well a pheromone is an

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electronic musical instrument played without any direct contact It makes

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a rather a spooky sound that look no hands but

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one of the players hands act as a capacitor plate

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while an antenna on the instrument provides the other plate

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as the distance between the hand and the antenna changes

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The capacitance between them also changes this intern affect the

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frequency of the sound treat The thurman system is a

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simple parallel plate capacitor Take a look at the following

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diagram Here we go Each plate is a square with

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sides of twenty one point three centimeters separated from each

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other by a distance of ten centimetres A constant potential

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difference of one hundred twenty volts has maintained between the

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plates What's the approximate magnitude of the charge on each

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plate And here the potential answers All right Well whether

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we're dealing with a somewhat dorky musical instrument or just

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too boring electric plates There's an equation to determine capacitance

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in this situation thea capacitance of a parallel plate capacitor

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equals the electric constant times the area of one of

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the plates divided by the distance between the plates to

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make things easier for us which we try to do

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in all circumstances let's use multiples of ten for the

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area and the electric constant Well the area will equal

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twenty centimeters squared or twenty times ten to the negative

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second meters The distance is ten centimetres a ten to

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the negative two meters The electric constant equals ten times

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ten to the negative twelve And when we flug in

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the numbers into our equations we find that the capacitance

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equals for pico farrah capacitance equals charge over voltage which

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means that charge equals voltage times capacities while for pico

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frauds times one hundred twenty volts gives us a charge

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of four hundred eighty pico coolant on the correct answer

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is a when we're dealing with capacitance we're going to

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be seeing these super tiny numbers It'll be pico and

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nano for rods all over the place But that's enough

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Math We need to get another jam sesh going with

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the fireman way Need to feel the music in our

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bones or in this case we need to feel the

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voltage in our fingers with a great sound like that

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It's Hard to believe the thurman really never caught on 00:02:38.745 --> [endTime] No

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