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# PH 223 33:7-8

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## Richard Datwyler

on 3 February 2017

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#### Transcript of PH 223 33:7-8

so you get 250 A at 120 V. What is the current in the 15000 V line (power conserved)
How many turns does the primary coil on the transformer have if the secondary coil has 100 turns.
Electricity is distributed from electrical substations to neighborhoods at 15,000 V. This is stepped down to 120 V for your home
24000 V
240 V
Average of 120kW of power is sent to a town on power lines with a total resistance of .4 ohms. Calculate the power loss if the power is transmitted at
Derive this
Demo
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"An explanation on power lines. How do power lines run high voltage low current? Isn't current proportional to voltage."
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